The Cthulhu Mythos is a shared universe based around the work of H. P. Lovecraft. It also includes works by Robert William Chambers, Clark Ashton Smith, Robert E. Howard, Robert Bloch, Frank Belknap Long, Henry Kuttner, Henry S. Whitehead, and Fritz Leiber.
Robert Blake, the protagonist of the Cthulhu Mythos story The Haunter of the Dark, is identified as a member of the Wold Newton family in Doc Savage: His Apocalyptic Life (1973). The same book identifies William Harper "Johnny" Littlejohn, one of Doc Savage's aides, as a professor at Miskatonic University (a location in several Cthulhu Mythos stories) and one of the characters in the Cthulhu Mythos story At the Mountain of Madness.
Crossovers chronology
| Story | Publication | Crossovers |
| 206 - Worms of the Earth | Weird Tales, November 1932 | see Bran Mak Morn |
| c. 410s - The Pillar in the Mist | Cross Plains Universe: Texans Celebrate Robert E. Howard, 2006 | see Kerak |
| Late 480s - The Temple of Abomination | Tigers of the Sea, 1974 | see Cormac Mac Art |
| 1300 - Army of Darkness | 1993 film | see Evil Dead |
| 1775 - Clown Fish | High Seas Cthulhu, 2007 | Doctor Syn |
| c. 1800-1819 - Black as the Pit, From Pole to Pole | New Dimensions 7, 1977 | see Frankenstein |
| 1842 - La Mystérieuse Antarctide | La machine à remonter les rêves: Les enfants de Jules Verne, 2005 | see The Narrative of Arthur Gordon Pym of Nantucket |
| Randolph Carter (an ancestor of Randolph Carter of Arkham) is a member of an Antarctic expedition. | ||
| 1849 - Red in Tooth and Claw | Tales of the Shadowmen, Volume 4: Lords of Terror, 2008 | see Rocambole |
| Rocambole buys a Priory rat (The Rats in the Walls) from Jack Black. | ||
| 1850 - Jerusalem's Lot | Night Shift, 1978 | see Works of Stephen King |
| The abandoned church at Jerusalem's Lot contains a copy of De Vermis Mysteriis. Yogsoggoth (Yog-Sothoth) is mentioned. | ||
| 1865 - Twenty Thousand Years under the Sea | Tales of the Shadowmen, Volume 4: Lords of Terror, 2008 | see Twenty Thousand Leagues Under the Sea |
| Captain Nemo encounters Cthulhu. One of Nemo's crewmen is named Suydam (a relative of Robert Suydam from The Horror at Red Hook). | ||
| 1873 - Mysterious Dan's Legacy | Arkham Tales: Legends of the Haunted City, 2006 | Great Expectations Doc Savage John Thunstone |
| 1874 - The Cold Comes South | In Lovecraft's Shadow #1, 2007 | see Mysterious Dave Mather |
| Mysterious Dave Mather encounters Ithaqua. | ||
| 1878 - Fool's Gold | Hell's Hangmen: Horror in the Old West, 2006 | see Mysterious Dave Mather |
| Mysterious Dave Mather encounters sand dwellers (The Gable Window). | ||
| 1879 - Snake Oil | Frontier Cthulhu, 2007 | see Mysterious Dave Mather |
| 1880 - The Weeping Masks | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1880 - Trail of the Brujo | Low Noon: Tales of Horror & Dark Fantasy from the Weird Weird West, 2012 | see Mysterious Dave Mather |
| 1882 - Tiger! Tiger! | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1882 - It Crawls | Lone Ranger and Tonto #1-4, August-November 1994 | see Lone Ranger |
| 1885-1896 - The Lady in the Black Gloves | Tales of the Shadowmen, Volume 3: Danse Macabre, 2007 | see Arsène Lupin |
| 1886 - The Giant Rat of Sumatra | Resurrected Holmes, 1996 | see Sherlock Holmes |
| 1887 - All-Consuming Fire | 1994 novel | see Doctor Who |
| 1887 - The Drowned Geologist | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1889 - The Adventure of the Voorish Sign | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1889 - A Case of Royal Blood | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1889 - Allan and the Sundered Veil | League of Extraordinary Gentlemen #1-6, March 1999-September 2000 | see Allan Quatermain |
| 1889 - The Red Planet League | Gaslight Grimoire, 2008 | see Sherlock Holmes |
| 1890 - In Memoriam | Rehearsals for Oblivion, Act I: Talse of the King in Yellow, 2006 | see The Picture of Dorian Gray |
| 1890 - Gypsies in the Wood | The Fair Folk, 2005 | see Diogenes Club |
| 1892-1895 - All Predators Great and Small | Tales of the Shadowmen, Volume 5: The Vampires of Paris, 2009 | see Dracula |
| 1894 - Art in the Blood | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1894 - The Curious Case of Miss Violet Stone | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1894 - The Adventure of the Antiquarian's Niece | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1894 - The Adventure of the Yellow Sign | Rehearsals for Oblivion, Act I: Tales of the King in Yellow, 2006 | see Sherlock Holmes |
| 1895 - The Case of the Wavy Black Dagger | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1896 - The Picture in the House | Weird Tales, October 1931 | |
| 1896 - Corridors of Deceit | Tales of the Shadowmen, Volume 4: Lords of Terror, 2008 | see The Black Coats |
| 1897 - The Mystery of the Hanged Man's Puzzle | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1897 - Seven Stars [Episode One: The Mummy's Heart] | Seven Stars, 2000 | see Diogenes Club |
| 1898 - To Mars and Providence | War of the Worlds: Global Dispatches, 1996 | see The War of the Worlds |
| 1898 - The Adventure of the Arab's Manuscript | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1899 - A Case of Insomnia | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1899 - The Five Fists of Science | 2006 graphic novel | see The Five Fists of Science |
| 1900 - The Last Vendetta | Tales of the Shadowmen, Volume 1: The Modern Babylon, 2005 | see Arthur Gordon |
| 1900 - Incident in the Boer War | Tales of the Shadowmen, Volume 6: Grand Guignol, 2009 | see Raffles |
| 1900 - The Mark of Kane | Tales of the Shadowmen, Volume 4: Lords of Terror, 2008 | see The Phantom of the Opera |
| 1901 - Richard Riddle, Boy Detective in "The Case of the French Spy" | Adventure, Vol. 1, 2005 | see Richard Riddle |
| 1902 - Death Did Not Become Him | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1910 - Where the Shadows Began... | Tales of the Shadowmen, Volume 6: Grand Guignol, 2009 | see Arsène Lupin |
| 1912 - One Fang | Cross Plains Universe: Texans Celebrate Robert E. Howard, 2006 | Conan the Barbarian |
| 1913 - The Shadow Out of Time | Astounding Stories, June 1936 | |
| 1914 - Dagon | The Vagrant #11, November 1919 | |
| 1915 - Nightmare in Wax | Shadows Over Baker Street, 2003 | see Sherlock Holmes |
| 1917 - The Temple | Weird Tales, September 1925 | |
| 1919 - The Statement by Randolph Carter | The Vagrant, May 1920 | |
| 1920 - The Repairer of Reputations The Mask In the Court of the Dragon The Yellow Sign |
The King in Yellow, 1895 novel | |
| 1921 - Eldritch | Disciples of Cthulhu II, 2003 | see The Island of Doctor Moreau |
| 1921 - Herbert West–Reanimator | Home Brew, February-July 1922 | |
| 1922 - Seven Stars [Episode Two: The Magician and the Matinee Idol] | Seven Stars, 2000 | see Diogenes Club |
| 1922 - To Cast Out Fear | New Mythos Legends, 1999 | see Anton Zarnak |
| 1922 - To Cast Out Fear | New Mythos Legends, 1999 | see Anton Zarnak |
| 1922 - The Festival | Weird Tales, January 1925 | |
| 1923 - Rats in the Walls | Weird Tales, March 1924 | |
| 1924 - The Call of Cthulhu | Weird Tales, February 1928 | |
| 1925 - Scream for Jeeves | 1994 story collection | see Jeeves |
| 1925 - The Music of Erich Zann | The National Amateur, December 1921 | |
| 1925 - The Strange High House in the Mist | Weird Tales, October 1931 | |
| 1925 - The Horror at Red Hook | Wierd Tales, January 1927 | |
| 1926 - Pickman's Model | Weird Tales, October 1927 | |
| 1927 - Rough Night in Innsmouth | Nightscapes, 1999 | see Dorgan |
| The story is set in Innsmouth. | ||
| 1927 - The Shadow Over Innsmouth | 1931 novel | |
| 1927-1928 - The Whisperer in Darkness | Weird Tales, August 1931 | |
| 1927 - Doc Ardan: City of Gold and Lepers | 1928 novel | see Doc Savage |
| The Mi-Go are referenced. | ||
| 1928 - Journey to the Center of Chaos | Tales of the Shadowmen, Volume 1: The Modern Babylon, 2005 | see Jimgrim |
| 1928 - The Dunwich Horror | Wierd Tales, April 1929 | |
| 1928 - The Dreams in the Witch-House | Wierd Tales, July 1933 | |
| 1928 - The Case of Charles Dexter Ward | Wierd Tales, May-July 1941 | |
| 1928 - The Mound | Weird Tales, November 1940 | |
| 1928 - The Murder of Randolph Carter | Tales of the Shadowmen, Volume 3: Danse Macabre, 2007 | see Hercule Poirot |
| 1929 - The Children of the Night | Weird Tales, April-May 1931 | see John Kirowan |
| One of the books in John Conrad's study is Von Junzt's Nameless Cults. Von Junzt was one of the few men who could read the Necronomicon in the original Greek translation. Both Conrad and Kirowan have read the Latin version. Kirowan mentions the existence of cults dedicated to Cthulhu, Yog Sothoth, Tsathoggua, and Gol-goroth. | ||
| 1929 - The Adventure of the Ancient Gods | 1990 novel | see Sherlock Holmes |
| 1929 - Blood Money and Human Bondage | Tarzan #15-24, August 1978-May 1979 | see Tarzan |
| 1929 - The Thing on the Doorstep | Weird Tales, January 1937 | |
| 1929-1930 - At the Mountains of Madness | Astounding Stories, February-April 1936 | Doc Savage |
| 1930 - Dig Me No Grave | Weird Tales, February 1937 | see John Kirowan |
| John Grimlan mentions Yog-Sothoth, Kathulos (probably an alternate spelling of Cthulhu) and Yuggoth. | ||
| 1930 - What Ho, Gods of the Abyss | The League of Extraordinary Gentlemen: Black Dossier, 2007 | see Jeeves |
| 1930 - King Kong: The Island of the Skull | 2005 novel | see King Kong |
| A dying girl murmurs "Ka-neh, ry-leh nah" (a reference to R'lyeh). | ||
| 1930 - The Adventure of the Six Silver Spiders | The Memoirs of Solar Pons, 1951 | see Solar Pons |
| 1930 - The Most Exciting Game | Tales of the Shadowmen, Volume 5: The Vampires of Paris, 2009 | see Tintin |
| Count Zaroff recites Captain Marsh's prayer. | ||
| 1930-1931 - Devil's Thoughts | Doc Savage: The Man of Bronze - The Devil's Thoughts #1-3, August-October 1992 | see Doc Savage |
| Johnny Littlejohn is an archaeology professor at Miskatonic University in Arkham. | ||
| 1933 - Sorcerer Conjurer Wizard Witch | A Book of Wizards, 2008 | see Diogenes Club |
| 1933 - The Thing on the Doorstep | Weird Tales, January 1937 | |
| 1935 - The Haunter of the Dark | Weird Tales, December 1936 | |
| 1936 - The Man for the Job | Tales of the Shadowmen, Volume 6: Grand Guignol, 2009 | see Pied Piper |
| One of the Piper's past cases dealt with the rats of Exham Priory. | ||
| 1937 - The Door in the House of the Never Slumbering Demons | Crypt of Cthulhu #104, Eastertide 2000 | see Anton Zarnak |
| Dr. Zarnak meets John O'Dare and helps him return to Sgra Astdaparl. (The Door to the World) | ||
| 1938 - Dope War of the Black Tong | The Disciples of Cthulhu: Second Revised Edition, 1996 | see Anton Zarnak |
| 1939 - The Necklace of Atlantis | The Avenger Chronicles, 2008 | see The Avenger |
| An unnamed Pacific island which vanished is implied to be R'lyeh. | ||
| 1939 - Doom Dynasty | Doc Savage: The Man of Bronze - Doom Dynasty #1-2, May-June 1991 | see Doc Savage |
| Monk mentions that Johnny is at "that weird university in Massachusetts" (Miskatonic University). | ||
| 1941 - To Battle Beyond | 2008 novel | Domino Lady Black Bat Ravenwood Anton Zarnak |
| 1942 - The Big Fish | Interzone #76, October 1993 | see Philip Marlowe |
| 1943 - In the Devil's Garden | Crypt of Cthulhu #106, Hallowmas 2000 | Nick Fury The Boys from Brazil |
| 1944 - Demon Island | 1975 novel | see The Avenger |
| 1945 - Tides of Justice | The Avenger Chronicles, 2008 | see The Avenger |
| 1946 - The Eye of Oran | Tales of the Shadowmen, Volume 2: Gentlemen of the Night, 2006 | see Doc Savage |
| 1946 - Something in Wood | Weird Tales, March 1948 | Fu Manchu |
| 1946 - Les Lèvres Rouges | Tales of the Shadowmen, Volume 3: Danse Macabre, 2007 | see Doc Savage |
| 1947 - Kill Me in the Morning | Atomic pulp website | see Gideon King |
| 1949 - The Children of Heracles | Tales of the Shadowmen, Volume 6: Grand Guignol, 2009 | see Nyctalope |
| 1949 - The Vanishing Devil | Tales of the Shadowmen, Volume 1: The Modern Babylon, 2005 | see Doc Savage |
| 1949 - Four-&-Twenty Bloodhounds | 1950 story collection | see Shadrack Arnold |
| 1951 - Armaana's Dark Mirror | Ki-Gor–Jungle Lord, 2007 | see Ki-Gor |
| Bayrolles (An Inhabitant of Carcosa and The Moonlit Road) is mentioned. | ||
| 1952 - Only an Hour | To Battle Beyond, 2008 | see Black Bat |
| 1961 - The Pain We Desire | Lin Carter's Anton Zarnak: Supernatural Sleuth, 2002 | see Anton Zarnak |
| 1967 - The Franklyn Paragraphs | Demons by Daylight, 1973 | The Real Life of Sebastian Knight The Alexandria Quartet The Lord of the Rings |
| 1968 - Another Fish Story | Weird Shadows Over Innsmouth, 2005 | see Works of Kim Newman |
| 1969 - Bloodstalk | 1975 novel | see Vampirella |
| 1971 - Blood Wedding | 1976 novel | see Vampirella |
| 1972 - Call Them Triad... Call Them Death | Giant-Size Dracula #2, September 1974 | see Dracula |
| 1972 - Soho Golem | Sci Fiction, October 13, 2004 | see Diogenes Club |
| 1973 - The Evil in Pemberley House | 2009 novel | see The Evil in Pemberley House |
| 1973 - The Mangler | Cavalier, December 1972 | see Works of Stephen King |
| 1974 - The Illuminatus! Trilogy | 1975 novel series | see The Illuminatus! Trilogy |
| Carcosa is connected with an ancient civilization in the Gobi Desert that was destroyed by the Illuminati's arrival on Earth. | ||
| 1974 - High Priestess of Sexual Fantasy | Star*Reach #3, October 1975 | see Linda Lovecraft |
| 1976 - What Every Coin Has | Kolchak: The Night Stalker Chronicles, 2005 | see Kolchak: The Night Stalker |
| 1976 - Cold Snap | The Secret Files of the Diogenes Club, 2007 | see Diogenes Club |
| 1976 - The Lovecraftian Horror | Kolchak: The Night Stalker: The Lovecraftian Horror, 2007 | see Kolchak: The Night Stalker |
| 1977 - The Blood of Dracula | 1977 novel | see Dracula |
| 1979 - The Freshman | The Magazine of Fantasy and Science Fiction, May 1979 | Tarzan |
| 1981 - The Plant | 1982-1985 novel | see Works of Stephen King |
| 1984 - Gramma | Weirdbook 19, Spring 1984 | see Works of Stephen King |
| 1985 - It | 1986 novel | see Works of Stephen King |
| 1986 - The Collect Call of Cthulhu | 1987 TV episode | see Ghostbusters |
| 1986 - You Can't Take It with You | Eldritch Tales #14, 1987 | see Jack Hagee |
| 1987 - Russian About | 1990 TV episode | see Ghostbusters |
| 1989 - Darkman: Dancin' in the Dark | Darkman #4, July 1993 | see Darkman |
| 1990 - The Sun Dog | Four Past Midnight, 1990 | see Works of Stephen King |
| 1991 - Needful Things | 1991 novel | see Works of Stephen King |
| 1991 - Last Rites | Destroyer #100, 1995 | see The Destroyer |
| 1992 - Only the End of the World Again | Shadows Over Innsmouth, 1994 | see The Wolf Man |
| 1992 - Hellboy | 2004 film | see Hellboy |
| The De Vermis Mysteriis is quoted. | ||
| 1994 - The True History of Dr. Pretorius | Interzone #98, August 1995 | see Frankenstein |
| 1994 - Maureen Birnbaum at the Looming Awfulness | Maureen Birnbaum, Barbarian Swordperson: The Complete Stories, 1993 | see Maureen Birnbaum |
| 1995 - Hallow Eve | X-Files Annual #1, August 1995 | see The X-Files |
| 1996 - My Favorite Redhead | Lori Lovecraft #1, March 1997 | see Lori Lovecraft |
| 1997 - The Night of the Living Rerun | 1998 novel | see Buffy the Vampire Slayer |
| 1998 - Batman/Hellboy/Starman | Batman/Hellboy/Starman #1-2, January-February 1999 | see Batman |
| 1998 - The Big Comeback | Lori Lovecraft: The Big Comeback #1, March 1999 | see Lori Lovecraft |
| 1999 - Bloodstone | Bloodstone #1-4, December 2001-March 2002 | see Elsa Bloodstone |
| 2000 - Frankenstein Meets Dracula | 2001 novel | see Frankenstein |
| 2000 - Iron Fist | Executioner #264, 2000 | see The Executioner |
| 2001 - Hungry Ghosts | Vampirella #7-10, April-June 2002 | see Vampirella |
| 2001 - Alone in the Dark | Alone in the Dark #1, July 2002 | see Alone in the Dark |
| 2003 - Swellhead | Night Visions 11, 2004 | see Diogenes Club |
| 2003 - Stacked Actors | Eldritch Blue: Love & Sex in the Cthulhu Mythos, 2004 | see Delta Green |
| Albert N. Wilmarth (The Whisperer in Darkness) worked with Group 13 in the 1940s. Among those who worked with Delta Green at the same time were Jeremiah Arkenton (Mythos stories of Kevin L. O'Brien), Henry Armitage, Francis Morgan, Warren Rice (The Dunwich Horror), William Dyer (At the Mountains of Madness), Tyler M. Freeborn, Wingate Peaslee (The Shadow Out of Time), and Laban Shrewsbury (Mythos stories of August Derleth). | ||
| 2003 - The Lost Cult | 2004 novel | see Tomb Raider |
| 2003 - The Man of Bronze | 2005 novel | see Tomb Raider |
| 2005 - Monster War | Magdalena vs. Dracula: Monster War 2005 Tomb Raider vs. The Wolf-Men: Monster War 2005 Witchblade vs. Frankenstein: Monster War 2005 The Darkness vs. Mr. Hyde: Monster War 2005 |
see Magdalena |
| 2005 - Army of Darkness vs. Re-Animator | Army of Darkness vs. Re-Animator #1-4, September 2005-February 2006 | see Evil Dead |
| 2005 - Crépuscule Vaudou | 2008 novel | see Dracula |
| Hugo van Helsing and his friends were planning to prevent the Clock Company from taking over the Misquamacas Trading Company, which owns every Indian burial site in the Dakotas. Marie Laveau's store has a copy of Etienne de Marigny's (Through the Gates of the Silver Key) notebooks on his journey to Saint-Sebastian. In 1771, Gideon van Helsing "killed" Joseph Curwen (The Case of Charles Dexter Ward). In 1828, Ithamar van Helsing battled Captain Obed Marsh's Esoteric Order of Dagon (The Shadow over Innsmouth). | ||
| 2007 - Cassie and Vlad meet the Re-Animator | Hack/Slash: The Series #15-17, August-November 2008 | see Hack/Slash |
| 2010 - Duo Miaule | Farmerphile #11, January 2008 | see Duo Miaule |
| 2265 - The Federation Holmes | 2001 story collection | see Star Trek |
| The Federation has ships named after O.C. Marsh, Cthulhu, Arkham, Sothoth, and Alhazred; there is also a reference to the three Hells of Rlyeh. | ||
| 2267 - How Much for Just the Planet? | 1987 novel | see Star Trek |
| Princess Deedee wears a Miskatonic University sweatshirt. | ||
| 2373 - Monthuglu | Strange New Worlds, 1998 | see Star Trek |
| The Monthuglu entities are reminiscent of Cthulhuoid horrors. | ||
Crossovers Expanded chronology
| Story | Publication | Crossovers |
| 41 - The Wedding of Sheila-Na-Gog | Crypt of Cthulhu #29, Candlemas 1985 | see Simon of Gitta |
| Sheila-na-gog had originally resided in Hyperborea. She might be a relative of Abhoth (The Seven Geases). The monster spawned from Sheila-na-gog after she consumed Scaevola might be Brown Jenkin (The Dreams in the Witch-House). | ||
| 500 - Surely You Joust | Cthulhu Unbound Volume 2, 2008 | Murphy's Lore King Arthur |
| 900 - Castle Atlante | Doctor Omega and the Shadowmen, 2011 | see Doctor Omega |
| 1225 - Lost in Averoigne | Tales of the Shadowmen, Volume 8: Agents Provocateurs, 2011 | see Averoigne |
| 1470-1477 - Vampire Renaissance | Tales of the Shadowmen, Volume 8: Agents Provocateurs, 2011 | see The Return of the Vampire |
| 1756 - Fort of Skulls | Pride of the Mohicans, 2014 | Leatherstocking Tales |
| 1766 - The Darkness in the Woods | Tales of the Shadowmen, Volume 11: Force Majeure, 2014 | see Cagliostro |
| 1808-1810 - Gods of the Underworld | Tales of the Shadowmen, Volume 9: La Vie en Noir, 2012 | see Tarzan Alive |
| 1845 - The Gruesome Affair of the Electric Blue Lightning | Beyond Rue Morgue: Further Tales of Edgar Allan Poe's 1st Detective, 2013 | see C. Auguste Dupin |
| 1855 - Piercing the Veil of Isis | Tales of the Shadowmen, Volume 10: Esprit de Corps, 2013 | see C. Auguste Dupin |
| 1865 - Hell Come Sundown | Dead Man's Hand: Five Tales of the Weird West, 2004 | see Hell Come Sundown |
| 1878 - Dead in the West | 1986 novel | see Jedidiah Mercer |
| 1879 - The Blood Libel | Merkabah Rider: Tales of a High Planes Drifter, 2009 | see Merkabah Rider |
| The Great Old Ones are mentioned. | ||
| 1879 - The Nightjar Women | Merkabah Rider: Tales of a High Planes Drifter, 2009 | see Merkabah Rider |
| The Elder Gods are mentioned. | ||
| 1880 - The Infernal Napoleon | Merkabah Rider: The Mensch with No Name, 2010 | see Merkabah Rider |
| Misquamacus (The Lurker at the Threshold), the Great Old Ones, The Wisdom and Sacred Magic of Zylac the Mage (Mythos stories of Joseph S. Pulver) and Allen Halsey (Herbert West–Reanimator) are mentioned. | ||
| 1880 - The Damned Dingus | Merkabah Rider: The Mensch with No Name, 2010 | see Merkabah Rider |
| The Wisdom and Sacred Magic of Zylac the Mage, Tsathoggua, Shub-Niggurath, Eibon, Milaab, Commoriom, Phenquor, Hyperborea, serpent men societies, Mhu Thulan, Azathoth, the Great Old Ones, the Elder Sign, the Star-Stones of Mnar (The Lurker at the Threshold), the Hetty (The Shadow over Innsmouth), Von Junzt, al-Hazred, the Necronomicon, shoggoths and Tsath-Yo are mentioned. | ||
| 1880 - The Outlaw Gods | Merkabah Rider: The Mensch with No Name, 2010 | see Merkabah Rider |
| Misquamacus, Shub-Niggurath, the Great Old Ones, the Outer Gods, K'n-yan, Yig, the book of Zylac, the Elder Sign, Magnum Innominandum (The Whisperer in Darkness), the Star-Stones of Mnar and the Sapientia Magorum are mentioned. | ||
| 1881 - The Pandæmonium Ride | Merkabah Rider: The Mensch with No Name, 2010 | see Merkabah Rider |
| Shub-Niggurath, the Star-Stones of Mnar, the Elder Sign and Yig are mentioned. | ||
| 1881 - The Long Sabbath | Merkabah Rider: Have Glyphs Will Travel, 2011 | see Merkabah Rider |
| The Great Old Ones, the Book of Zylac, Tsath-Yo, Yiggians, the Star-Stone of Mnar and the Elder Sign are mentioned. | ||
| 1881 - Longarm and the Devil's Bride | Longarm #311, 2004 | see Longarm |
| 1881 - The War Shaman | Merkabah Rider: Have Glyphs Will Travel, 2011 | see Merkabah Rider |
| The Elder Sign, the Great Old Ones, Shub-Niggurath, Yiggians, the Star-Stones of Mnar, Misquamacus, Nyarlathotep, the Billington family, the Book of Zylac and Ossodagowah are mentioned. | ||
| 1882 - The Mules of the Mazzikim | Merkabah Rider: Have Glyphs Will Travel, 2011 | see Merkabah Rider |
| The Great Old Ones are mentioned. | ||
| 1882 - The Man Called Other | Merkabah Rider: Have Glyphs Will Travel, 2011 | see Merkabah Rider |
| The Great Old Ones, Nyarlathotep, Shub-Niggurath, Ossodagowah, the Book of Zylac and the Necronomicon are mentioned. | ||
| 1882 - The Fire King Triumphant | Merkabah Rider: Have Glyphs Will Travel, 2011 | see Merkabah Rider |
| Misquamacus, Warren Rice, Tsath-yo, the Great Old Ones, the Book of Eibon, the Cthaat Aquadingen (Mythos stories of Brian Lumley), the Necronomicon, Nyarlathotep, the Book of Karnak (Mythos stories of Henry Kuttner), the Testament of Carnamagos, the Ponape Scripture, De Vermis Mysteriis, Prinn, Abdul Alhazred and Keziah Mason (The Dreams in the Witch House) are mentioned. | ||
| 1882 - Merkabah Rider: Once Upon a Time in the Weird West | 2013 novel | see Merkabah Rider |
| 1882 - The Issue of Dr. Jekyll | HorrorTalk website, 2013 | see Professor Challenger |
| Dr. George Edward Rutherford, Dr. Henry Jekyll, Professor Henry Higgins and Dr. Moreau visit Arkham and Miskatonic University. Higgins takes trips to nearby villages, including Witch's Hollow (from the story of the same name by August Derleth), Bolton (Herbert West–Reanimator), Kingsport (The Festival) and Innsmouth. They investigate the meteor which impacts on Nahum Gardner's land (The Colour Out of Space). Herbert West is the son of Jekyll and Evangeline West. | ||
| 1884 - Nemo at R'lyeh | Cthulhu Unbound Volume 2, 2008 | see Twenty Thousand Leagues Under the Sea |
| 1887 - The Hour of the Tortoise | The Book of Cthulhu 2, 2012 | see Calipash |
| 1888 - The Adventure of the Six Maledictions | Gaslight Arcanum, 2011 | see Sherlock Holmes |
| 1889 - Surf City, Here I Come | The Weird Western Adventures of Haakon Jones, 1999 | see Haakon Jones |
| 1889 - Phileas Fogg and the War of Shadows | 2014 novel | see The Evil in Pemberley House |
| 1894 - The Second Theft of Alhazred's Manuscript | Historical Lovecraft: Tales of Horror Through Time, 2011 | see Sherlock Holmes |
| 1895 - The Season of the Shark | The Nyctalope Steps In, 2011 | see Nyctalope |
| 1897 - Consequences of a Funeral | Sisters of the Shadows: The Cagliostro Curse, 2013 | see Raffles |
| 1897 - The Adventure of the Haunted Showman | Sherlock Holmes: The Game's Afoot, 2008 | see Sherlock Holmes |
| 1898 - A Professional Matter | Tales of the Shadowmen, Volume 11: Force Majeure, 2014 | see Adam Adamant Lives! |
| 1899 - Remnant | 2014 e-book | see Simon Feximal |
| 1899 - First Steps | Night of the Nyctalope, 2012 | see Nyctalope |
| 1903 - A Case for Langdale Pike | On Conan Doyle; or, The Whole Art of Storytelling, 2012 | see Sherlock Holmes |
| 1904 - Action of Arkham's Boot Hill | The Weird Western Adventures of Haakon Jones, 1999 | see Haakon Jones |
| 1910 - Professor Peaslee Plays Paris | Tales of the Shadowmen, Volume 9: La Vie en Noir, 2012 | Sherlock Holmes Father Brown The Black Coats Charlie Chan Zigomar Jules Maigret Indiana Jones The Three Musketeers Arsène Lupin Titanic The Pink Panther The Maltese Falcon Baron Cesare Stromboli |
| 1911 - Bedlam in Yellow | In the Court of the Yellow King, 2014 | Carnacki |
| 1911 - The Kew Growths | Professor Challenger: The Kew Growths and Other Stories, 2014 | see Professor Challenger |
| 1911 - The Swine of Gerasene | Tales of the Shadowmen, Volume 10: Esprit de Corps, 2013 | see Sâr Dubnotal |
| 1912 - Time's Black Gulf | Professor Challenger: New Worlds, Lost Places, 2015 | see Professor Challenger |
| 1912 - The Petrified Forest | Professor Challenger: The Kew Growths and Other Stories, 2014 | see Professor Challenger |
| 1913 - The Last Tale | Tales of the Shadowmen, Volume 10: Esprit de Corps, 2013 | see Carnacki |
| 1914 - A Job for Carnacki | Carnacki: The New Adventures, 2013 | see Carnacki |
| 1914 - Drums in the Deep | Professor Challenger: The Kew Growths and Other Stories, 2014 | see Professor Challenger |
| 1914 - The Quest of Frankenstein | 2015 novel | see Frankenstein |
| 1916 - What Rough Beast | Tales of the Shadowmen, Volume 7: Femmes Fatales, 2010 | see Gladiator |
| 1916 - Rouletabille vs. the Cat | Tales of the Shadowmen, Volume 10: Esprit de Corps, 2013 | see The Cat and the Canary |
| 1918 - The Blood of Frankenstein | Tales of the Shadowmen, Volume 10: Esprit de Corps, 2013 | Frankenstein Doc Savage Dracula Carmilla |
| 1919 - Dead Man's Tongue | The Dark Rites of Cthulhu, 2014 | John Kirowan |
| 1919 - In the Caves of the Serpent | Tales of the Shadowmen, Volume 8: Agents Provocateurs, 2011 | see El Borak |
| 1919 - The Unwrapping Party | Pro Se Presents, 2012 | see Charles St. Cyprian |
| 1919 - Revenge of the Reanimator | Tales of the Shadowmen, Volume 10: Esprit de Corps, 2013 | Locus Solus The Great Gatsby Twenty Thousand Leagues Under the Sea The Coming Race |
| 1919 - The Sepia Prints | In the Court of the Yellow King, 2014 | Locus Solus The Phantom of the Opera |
| 1919 - The Ylourgne Accords | Tales of the Shadowmen, Volume 11: Force Majeure, 2014 | Locus Solus The Phantom of the Opera Averoigne Brotherhood of the Wolf Jimgrim Batman Uncle Vanya Revolt of the Zombies Dr. Lorde King of the Zombies Cornelius Kramm Frankenstein Sâr Dubnotal |
| 1919 - The Dreaming Dead | Horror for the Holidays, 2011 | see Charles St. Cyprian |
| 1920 - The Whitechapel Demon | 2013 novel | see Charles St. Cyprian |
| 1920 - The Strix Society | Occult Detectives, 2014 | see Charles St. Cyprian |
| 1920 - The Jade Suit of Death | 2014 novel | see Charles St. Cyprian |
| 1920 - The Artist as Wolf | Leather, Denim & Silver: Legends of the Monster Hunter, 2011 | see Charles St. Cyprian |
| 1920 - Deep Red Bells | Sharkpunk, 2015 | see Charles St. Cyprian |
| 1921 - The Faceless Fiend | The Royal Occultist website | see Charles St. Cyprian |
| 1921 - Sign of the Salamander | Fantasy and Fear #3, 2011 | see Charles St. Cyprian |
| 1921 - The Gotterdammerung Gavotte | Lovecraft eZine #18, October 2012 | see Charles St. Cyprian |
| 1921 - The Teeth of Winter | PulpWork Christmas Special 2014 | see Charles St. Cyprian |
| 1922 - Army of Darkness/Reanimator | Army of Darkness/Reanimator, October 2013 | see Evil Dead |
| 1922 - The Bells of Northam | Lovecraft eZine #23, October 2013 | Carnacki John Silence |
| 1922 - Locked Room | The Tales of Inspector Legrasse, 2005 | see Anton Zarnak |
| 1922 - The D'erlette Configuration | The Royal Occultist website | see Charles St. Cyprian |
| 1923 - In the Dark and Quiet | Use Enough Gun: Legends of the Monster Hunter III, 2013 | see Charles St. Cyprian |
| 1923 - The Pnakotic Puzzle | Lovecraft eZine #33, January 2015 | see Charles St. Cyprian |
| 1924 - Vaults of the Dark Burgeoning God | PulpWork Christmas Special 2014 | see Charles St. Cyprian |
| 1925 - Lost in Averoigne | Tales of the Shadowmen, Volume 8: Agents Provocateurs, 2011 | see Jules de Grandin |
| 1925 - Castle Atlante | Doctor Omega and the Shadowmen, 2011 | see Jules de Grandin |
| 1925 - Nothing to Fear but Dust | The Tales of Inspector Legrasse, 2005 | Anton Zarnak |
| 1925 - The Express Diaries | 2012 novel | see Professor Challenger |
| 1925 - The Third Death of Henry Antrim | PulpWork Christmas Special 2013 | see Charles St. Cyprian |
| 1926 - Atomic Robo and the Shadow From Beyond Time | Atomic Robo and the Shadow From Beyond Time #1-5, April 2009-September 2009 | see Atomic Robo |
| 1929 - The Judex Codex | The Shadow of Judex, 2013 | see Martin Mystère |
| 1929 - Pickman's Other Model (1929) | Sirenia Digest #28, March 2008 | Works of Peter Straub |
| 1931 - The Hunters | Jim Anthony: Super Detective Volume Two, 2010 | see Jim Anthony |
| 1931 - Nestor Burma in New York | Tales of the Shadowmen, Volume 10: Esprit de Corps, 2013 | see Nestor Burma |
| 1933 - The Sign of the Salamander | John Chance vs Dread: The Apocalypse #1, Summer/Fall 1975 | see Curtiss Stryker |
| Among the occult matters studied by John Chance are the secrets of Carcosa (An Inhabitant of Carcosa). | ||
| 1933 - The Curse of Poseidon | 2014 novel | see Challenger Storm |
| 1935 - The Gray Reapers | The Spider: Extreme Prejudice, 2013 | see The Spider |
| 1935 - The Time Travelers' Ex-Wife | Lovecraft eZine #29, February 2014 | Quantum Leap The Thin Man |
| 1936 - Lifeblood | 1990 novel | see Vampire Files |
| 1936 - The Noble Freak | Tales of the Shadowmen, Volume 11: Force Majeure, 2014 | see Felifax |
| 1937 - The Coming Race | The Vril Agenda, 2014 | see Jim Anthony |
| 1938 - Gateway Machine | Secret Agent X, Volume 2, 2008 (second edition) | see Secret Agent X |
| 1938 - Horror in Clay | The Green Lama Volume 1, 2009 | see Green Lama |
| 1938 - The Devil's Crater | Tales from the Hanging Monkey Volume One, 2012 | see Hanging Monkey |
| 1938 - Green Lama: Scions | 2014 novel | see Green Lama |
| 1939 - The Case of the Final Column | The Green Lama: The Complete Pulp Adventures Volume 3, 2012 | see Green Lama |
| 1939 - Agents of the Night | Ravenwood: Stepson of Mystery Volume One, 2010 | see Ravenwood |
| 1939 - The Green Lama Unbound | 2010 novel | see Green Lama |
| 1939 - Death Master of the Secret Island | Captain Midnight Chronicles, 2010 | see Captain Midnight |
| 1939 - The Daemon's Kiss | Of Monsters and Men, 2014 | see Green Lama |
| 1940 - Nazis in Paradise | The Rocketeer: Jet-Pack Adventures, 2014 | see Rocketeer |
| 1940 - The Black Bat at Bay | Black Bat Mystery Volume One, 2010 | see Black Bat |
| 1940 - The Carolingian Stone | Tales of the Shadowmen, Volume 8: Agents Provocateurs, 2011 | see Jim Anthony |
| 1940 - The Death's Head Cloud | 2013 novel | see Jim Anthony |
| 1941 - The Keep | 1981 novel | see Repairman Jack |
| 1941 - Depths of Horror | The New Adventures of Thunder Jim Wade, 2012 | see Thunder Jim Wade |
| 1943 - The Dead World | The Worlds of Edgar Rice Burroughs, 2013 | see Pellucidar |
| 1943 - Blue Devil Island | 2007 novel | Dark Shadows |
| 1944 - The Letters of Cold Fire | Weird Tales, May 1944 | see John Thunstone |
| 1944 - The Spider: Shadow of Evil | 2012 novel | see The Spider |
| 1945 - Chance of a Ghost | Legends of New Pulp Fiction, 2015 | see Green Ghost |
| 1945 - Bothon | Amazing Stories, August 1946 | see Bothon |
| 1946 - Shonokin Town | Weird Tales, July 1946 | see John Thunstone |
| 1946 - Zombies Under Broadway | The Green Ghost Declassified, 2016 | see Green Ghost |
| 1952 - Infestation 2: 30 Days of Night | Infestation 2: 30 Days Of Night #1, April 2012 | see 30 Days of Night |
| 1953 - Nestor Burma Goes West | Tales of the Shadowmen, Volume 9: La Vie en Noir, 2012 | see Nestor Burma |
| 1955 - The Yoth Protocols | World War Cthulhu: A Collection of Lovecraftian War Stories, 2014 | Baxter Sarlowe Far Below Bran Mak Morn John Thunstone Kull |
| 1962 - Operation Starfish | Kaiju Rising: Age of Monsters, 2014 | Nero Wolfe The Avengers Danger Man X the Unknown |
| 1962 - Repossession | Hellboy: Oddest Jobs, 2008 | see Hellboy |
| 1962 - Cold War, Yellow Fever | World War Cthulhu: A Collection of Lovecraftian War Stories, 2014 | The Midwich Cuckoos James Bond Mimsy Were the Borogoves |
| 1963 - Casting the Stone | Over the Edge, 1964 | Judge Pursuivant John Thunstone |
| 1964 - The Voice of the Mountain | 1984 novel | see Silver John |
| 1966 - Nocturne | 2014 episode | see Inspector Morse |
| 1967 - True Believers | Tales of the Shadowmen, Volume 10: Esprit de Corps, 2013 | see Lost Horizon |
| 1977 - The Lovecraftian Damnation | Kolchak: The Night Stalker: The Lovecraftian Damnation, 2010 | see Kolchak: The Night Stalker |
| 1981 - Night Train | 1984 novel | see Night Train |
| 1985 - The Hole in the Wall Gang | 1987 TV episode | see Ghostbusters |
| 1987 - Hellraiser/Nightbreed: Jihad | Hellraiser/Nightbreed: Jihad #1-2, 1991 | see The Hellbound Heart |
| 1988 - Toad Island | Real Ghostbusters #8, April 1989 | see Ghostbusters |
| 1989 - Ghost in the Machine | Destroyer #90, 1992 | see The Destroyer |
| 1989 - Lord of the Land | Lovecraft's Legacy, 1990 | Harry Houdini |
| 1990 - Out of the Blackness | Here There Be Monsters, 2010 | see Bianca Jones |
| 1990 - A World Inside | Here There Be Monsters, 2010 | see Bianca Jones |
| 1990 - Witch Hill | 1990 novel | see Colin MacLaren |
| 1991 - Terrible Anticipation | Lai Wan: The Dreamwalker, 2013 | see Teddy London |
| 1993 - The Land of the Reflected Ones | Eternal Lovecraft, 1998 | Sonja Blue |
| 1995 - The Time of Feasting | 1996 novel | see Victor Renquist |
| 1995 - The Vril Agenda | 2014 novel | see Dillon |
| 1996 - Darklost | 2000 novel | see Victor Renquist |
| 1996 - 21 Doors | Dark Furies: Weird Tales of Beauties and Beasts, 2005 | see Bianca Jones |
| 1999 - A Question of Meaning | Sargasso: The Journal of William Hope Hodgson Studies #1, 2013 | see The Night Land |
| 2000 - Drinking Midnight Wine | 2001 novel | see Drinking Midnight Wine |
| Gandalf's bookshop sells the new English translation of the Necronomicon. | ||
| 2000 - More Than Mortal | 2001 novel | see Victor Renquist |
| 2001 - The Lost Level | 2014 novel | see Works of Brian Keene |
| 2001 - Leviathan | Executioner #276 | see The Executioner |
| 2001 - Something from the Nightside | 2003 novel | see Nightside |
| The railway station in the Nightside has graffiti with the name Cthulhu misspelled. | ||
| 2001 - The Man with the Golden Torc | 2007 novel | see Secret Histories |
| 2001 - Daemons Are Forever | 2008 novel | see Secret Histories |
| 2001 - Agents of Light and Darkness | 2003 novel | see Nightside |
| 2002 - Underland | 2002 novel | see Victor Renquist |
| 2002 - Monster Hunter International | 2009 novel | see Monster Hunter |
| 2002 - Nightingale's Lament | 2004 novel | see Nightside |
| 2002 - Ghost of a Chance | 2010 novel | see Ghost Finders |
| 2002 - Hex and the City | 2005 novel | see Nightside |
| 2002 - Paths Not Taken | 2005 novel | see Nightside |
| 2002 - Sharper Than a Serpent's Tooth | 2006 novel | see Nightside |
| 2002 - The Spy Who Haunted Me | 2009 novel | see Secret Histories |
| 2002 - How Do You Feel? | Hex Appeal, 2012 | see Nightside |
| 2002 - Blood Rites | 2004 novel | see The Dresden Files |
| 2002 - Hell to Pay | 2006 novel | see Nightside |
| 2003 - The Unnatural Inquirer | 2008 novel | see Nightside |
| 2003 - The Big Game | Tales from the Nightside, 2015 | see Nightside |
| 2003 - Just Another Judgment Day | 2009 novel | see Nightside |
| 2003 - The Good, the Bad, and the Uncanny | 2010 novel | see Nightside |
| 2003 - A Hard Day's Knight | 2011 novel | see Nightside |
| 2003 - For Heaven's Eyes Only | 2011 novel | see Secret Histories |
| 2003 - Monster Hunter Vendetta | 2010 novel | see Monster Hunter |
| 2003 - Casino Infernale | 2013 novel | see Secret Histories |
| 2003 - Property of a Lady Faire | 2014 novel | see Secret Histories |
| 2003 - Dark Congress | 2007 novel | see Buffy the Vampire Slayer |
| 2003 - Monster Hunter Alpha | 2011 novel | see Monster Hunter |
| 2004 - War Cry | Jim Butcher's Dresden Files: War Cry #1-5, June-October 2014 | see The Dresden Files |
| 2004 - Spirits From Beyond | 2013 novel | see Secret Histories |
| 2004 - Writ in Blood | 2005 novel | see Jonathan Crowley |
| 2005 - Monster Hunter Legion | 2012 novel | see Monster Hunter |
| 2005 - Monster Hunter Nemesis | 2014 novel | see Monster Hunter |
| 2006 - Not What One Does | Lai Wan: The Dreamwalker, 2013 | see Teddy London |
| 2006 - Don't Judge a Book by Its Title | Tales of the Shadowmen, Volume 11: Force Majeure, 2014 | see Evil Dead |
| 2006 - Heart-Shaped Box | 2007 novel | see Heart-Shaped Box |
| 2007 - Backup | Side Jobs, 2010 | see The Dresden Files |
| 2007 - The Hunters within the Corners | Cthulhu Unbound Volume 2, 2008 | The Shadow |
| 2007 - Evil Ways | 2009 novel | see Dracula |
| 2007 - Deeper | 2008 novel | see Works of James A. Moore |
| 2008 - House of the Wolf Man | 2009 film | see Frankenstein |
| 2008 - Turn Coat | 2010 novel | see The Dresden Files |
| 2008 - Grey Matters | 2009 TV episode | see Fringe |
| 2008 - Ghost Walk | 2008 novel | see Works of Brian Keene |
| 2009 - Knight Fall | 2010 TV episode | see House |
| 2009 - Mr. Mercedes | 2014 novel | see Works of Stephen King |
| 2009 - Blood Oath | 2010 novel | see Nathaniel Cade |
| 2010 - A Gathering of Crows | 2010 novel | see Works of Brian Keene |
| 2010 - One Year Gone | 2011 novel | see Supernatural |
| 2010 - The President's Vampire | 2011 novel | see Nathaniel Cade |
| 2010 - Night Gauntlet | The Magazine of Fantasy and Science Fiction, March-April 2011 | Works of Stephen King |
| 2011 - An Evil Within | 2011 TV episode | see Warehouse 13 |
| Pete Lattimer and Myka Bering search for H. P. Lovecraft's Silver Key. | ||
| 2011 - Mr. Blank | 2012 novel | see Mr. Blank |
| The Elder Gods are mentioned. | ||
| 2011 - Blind Shadows | 2012 novel | see Wade Griffin |
| The Blackbourne family are attempting to bring Shub Niggurath into their universe. | ||
| 2012 - Prophecy | Prophecy #1-7, June 2012-February 2013 | see Red Sonja |
| Dr. Herbert West helps Red Sonja and Vampirella battle Kulan Gath. He has a copy of the Necronomicon. | ||
| 2012 - Skin Game | 2015 novel | see The Dresden Files |
| 2012 - Congregations of the Dead | 2014 novel | see Wade Griffin |
| 2012 - Vampirella Halloween Special 2013 | Vampirella Halloween Special 2013 | see Vampirella |
| 2014 - A Footnote in the Black Budget | The Madness of Cthulhu, Volume Two, 2015 | Joe Ledger |
| 2014 - Curse of the Necronomicon | 2015 novel | see Myth Hunter |
| 2014 - Under the Dome | 2009 novel | see Works of Stephen King |
| 2014 - The Dark Side of the Road | 2015 novel | see Ishmael Jones |
Additional crossovers chronology
| Story | Publication | Crossovers |
| year unknown - Splinter of the Mind's Eye | 1978 novel | see Star Wars |
| Pomojema, one of many deities worshiped on Mimban, closely resembles one of the Spawn of Cthulhu. | ||
| year unknown - The Changing Land | 1981 novel | see Dilvish the Damned |
| Tualua is revealed to be one of the Old Ones. The Hounds of Tindalos are also fought. | ||
| 58 BC - Lucretius' Maze | Tales of the Shadowmen 15: Trompe l'Oeil, 2018 | see Titus Crow |
| c. 10th century - Eaters of the Dead | 1976 novel | see Eaters of the Dead |
| Abdul Alḥaẓred's Necronomicon is quoted in the in-character bibliography. | ||
| 1620 - The Black Ship | Dreaming, 2018 | Zombie Apocalypse! |
| 1642 - Beneath the Mount of Divination | Tales of the Shadowmen, Volume 14: Coup de Grace, 2017 | see The Three Musketeers |
| 1790s - The Goat of Saint Elster | Tales of the Shadowmen, Volume 13: Sang Froid, 2016 | see Malpertuis |
| 1847 - Dread Island | Classics Mutilated, July 2013 | see Huckleberry Finn |
| Br'er Fox attempts to summon Cthulhu, but is thwarted by Huck and Jim. | ||
| 1865 - Clash of the Titans | Sâr Dubnotal: The Astral Trail, 2015 | see Sâr Dubnotal |
| 1866 - The Tomb of the Veiled Prophet | Tales of the Shadowmen, Volume 12: Carte Blanche, 2015 | see The Phantom of the Opera |
| 1888-1892 - Phantom Masquerade | Tales of the Shadowmen, Volume 14: Coup de Grace, 2017 | see Fantômas |
| 1897 - The Death of Art | 1996 novel | see Doctor Who |
| David Clayton had seen the King in Yellow's first act before the play was banned by the French authorities. | ||
| 1899 - The Game of Extraordinary Gentlemen | League of Extraordinary Gentlemen #1-6, March 1999-September 2000 | see The Game of Extraordinary Gentlemen |
| 1913 - White Darkness | 1993 novel | see Doctor Who |
| Great Intelligence is conflated with Yog-Sothoth. Howard Phillips owns a copy of an Eocene Necronomicon, which was given to him by Aleister Crowley. Gilles Lemaitre owns The Book of Dzyan, The Book of Eibon, The Golden Bough, Ludwig Prinn's De Vermis Mysteriis, and The Beginner's Guide to the Necronomicon. | ||
| 1919-1928 - Reanimatrix | 2016 novel | Foyle's War Philip Marlowe Nero Wolfe Dirty Dancing Indiana Jones The Maltese Falcon The Goonies Animal House Monarch of the Glen The Name of the Rose Lot No. 249 The Return of the Living Dead Locus Solus The Great Gatsby Charlie Chan The Thin Man Hercule Poirot Doc Martin Chief Inspector Barnaby Twin Peaks The Continental Op Pitch Perfect Works of Stephen King Funny Farm Alien Kolchak: The Night Stalker Blade Runner X: The Man with the X-Ray Eyes Nostromo Grabbers The Rocky Horror Picture Show Law & Order Philo Vance The Shadow Johnny Dangerously Laura Auntie Mame Murder, She Wrote M*A*S*H ER Sherlock Holmes Father Brown The Double Death of Frederic Belot The Abominable Dr. Phibes Picnic at Hanging Rock Dr. Jekyll and Mr. Hyde Rosemary's Baby The Dukes of Hazzard Tarzan Doctor X The Return of Doctor X Jaws Pygmalion Quantum Leap Look at the Harlequins! She Coming to America Dracula Psycho Gladiator Frankenstein Lord Peter Wimsey Columbo |
| 1922-1923 - The Secrets of Drearcliff Grange School | 2015 novel | see Drearcliff Grange School |
| Janice Marsh from Innsmouth is a student at Dearcliff Grange School. | ||
| 1925 - The Giants of Black Lake | 1931 novel | see Doc Savage |
| 1925 - The Peculiar Cats of the Sea of Dreams | Tales of the Shadowmen, Volume 16: Voir Dire, 2019 | see Ismeddin |
| 1927 - Watch Your Back, Mr. Minamoto | 2017 novel | see Mr. Moto |
| 1928 - Ardan at the Pole | Tales of the Shadowmen, Volume 12: Carte Blanche, 2015 | see Doc Savage |
| 1928 - The Dunwich Horror | Wierd Tales, April 1929 | The White People |
| 1928 - The Whisper in Darkness | 1931 novel | Bran Mak Morn Bethmoora Skull-Face |
| 1928–1948 - Leviathan | 2000 AD #1351–1360, 2003 | see Leviathan |
| 1929 - The Evil Among Us | Tales of the Shadowmen, Volume 12: Carte Blanche, 2015 | see Sherlock Holmes |
| 1929 - The Eldritch Stones | Tales of the Shadowmen, Volume 12: Carte Blanche, 2015 | see Sâr Dubnotal |
| 1929 - Bringer of the Outer Dark | Tales of the Shadowmen, Volume 13: Sang Froid, 2016 | see Ironcastle |
| 1930s - The Squirming Script | The New Adventures of Solar Pons, 2019 | see Solar Pons |
| 1937 - Small Ghost | Nightscapes, January 1998 | Sherlock Holmes |
| 1939 - The Green Lama: Crimson Circle | 2015 novel | see Green Lama |
| 1940 - Red Shambhala | 2015 novel | see Jim Anthony |
| Jim Anthony has Richard Upton Pickman's painting "Subway Accident" in his penthouse. | ||
| 1940 - The Triumph of Frankenstein | 2017 novel | see Frankenstein |
| 1944 - The Devil's Rock | 2011 film | see The Devil's Rock |
| 1944 - Monstrumfuhrer | 2017 novel | see Frankenstein |
| 1951 - At the Hills of Hollywood | Waiting, 2017 | Marty Burns Mike Hammer |
| 1956 - One Summer Night at Holy Cross | Tales of the Shadowmen, Volume 13: Sang Froid, 2016 | see Bob Morane |
| 1957 - First Frontier | 1994 novel | see Doctor Who |
| The Darklings of Yuggoth fought a war with the Tzun circa 23,000 BC. | ||
| 1958 - The Awful Orloffs: The Story of a Family [Chapter 3: Claws of the Cat, Fangs of the Bat] | Archive of Our Own, 2018 | see 12 to the Moon |
| The Elder Gods and Old Ones are conflated with the Arisians and Eddorians respectively. Bast is revealed to be the creator of Ulthar. | ||
| 1960s - Chelsea Fertility Rites | Johnny Rich, 2018 | see Johnny Rich |
| 1963 - The Color Out in Space | Waiting, 2017 | Captain Scarlet and the Mysterons Quatermass Maxwell's Silver Hammer Rutland Weekend Television No Man Friday Blackadder Inspector Morse 2001: A Space Odyssey Dr. Strangelove The Midwich Cuckoos Doctor Who Works of Stephen King Dan Dare Voyage to the Bottom of the Sea The Saliva Tree |
| 1966 - The Revelation of the Yeti | Tales of the Shadowmen, Volume 12: Carte Blanche, 2015 | see Doctor Omega |
| Khokarsa is sometimes spelled "Karkosa". Barton Werper has heard of Cthulhu, Azathoth and Dagon. Doctor Omega had heard of the Tcho-Tcho while a guest at a Tibetan monastery. Nora had heard of the Jermryns, who worshipped the Great Old Ones. The foursome travel to the Plateau of Leng, where they find Aklo runes and encounter the Mi-Go. A group of sorcerers attempt to summon Yog-Sothoth. | ||
| 1966 - The Crucible | Chilling Adventures of Sabrina #1-6, December-September 2014-2016 | see Sabrina the Teenage Witch |
| The Demonomicon is described as being a sister-book to the Necronomicon. | ||
| 1966 - Witch War | Chilling Adventures of Sabrina #7-8, September-October 2017 | see Sabrina the Teenage Witch |
| Upon meeting Jughead Jones, Sabrina experiences a vision of her becoming the bride of Cthulhu in an alternate reality. | ||
| 1968 - Muse | 2018 episode | see Inspector Morse |
| 1968 - The Dunwich Horrors | Dreaming, 2018 | The Prisoner |
| 1969 - The Shadow Over the Moon | Dreaming, 2018 | Captain Scarlet and the Mysterons Dan Dare Voyage From the Earth to the Moon A Question of Re-Entry The Dead Astronaut The Cage of Sand No Man Friday Doctor Who |
| 1974 - Water Gate | Dreaming, 2018 | The Conversation The Parallax View |
| 1977 - The Shadow Across 110th Street | Waiting, 2017 | Diogenes Club Drearcliff Grange School Tarzan |
| 1977 - Voodoo vs. Cthulhu! | Dreaming, 2018 | Diogenes Club The Specialty of the House Tarzan Prizzi Derek Flint |
| 1983 - Phantoms | 1983 novel | see Phantoms |
| The "Ancient Enemy" is heavily implied to be Nyarlathotep. | ||
| 1986 - Young Dillon in the Halls of Shamballah | 2018 novella | see Dillon |
| Migou, Tcho-Tcho- and Leng are mentioned. | ||
| 1988 - The Book of the Vishanti | Doctor Strange, Sorcerer Supreme #9-13, 1989-1990 | see Doctor Strange |
| Chthon is one of the Elder Gods, who are shown to be the etherial byproducts created by the Earth's Demiurge, given perceptible forms by mankind's conceptualization of them. | ||
| 1990 - Foot Soldier | Badger #68, February 1991 | see Badger |
| Azathoth and Cthulhu are mentioned. A pocket Necronomicon appears. | ||
| 1992-2007 - The Graveyard Book | 2008 novel | see The Graveyard Book |
| Bod is taken by a troop of ghouls to the Dreamlands, only to be rescued by a benevolent nightgaunt. | ||
| 1995-2012 - True Detective, Season 1 | 2014 TV series | see True Detective |
| 1996 - The Awful Orloffs: The Story of a Family [Chapter 4: The Malevolent Mansion] | Archive of Our Own, 2018 | see A Series of Unfortunate Events |
| 2000 - Boneyard | comic book series, 2001-2009 | see Boneyard |
| Haz'aroth is a benevolent member of the Old Ones. | ||
| 2000 - American Gods | 2001 novel | see American Gods |
| Cthulhu appears in Shadow's vision of the Hall of Dead Gods. | ||
| 2003 - Going Underground | 2000 AD #1322-1326, 2003 | see Caballistics, Inc. |
| Solomon carries with him the Lamp of Alhazred. The forces of Yuggoth are implied to have some jurisdiction over Sheol and Gehenna/Hell. | ||
| 2003 - Moving In | 2000 AD #1331-1333, 2003 | see Caballistics, Inc. |
| Malcolm Critchley occupied Exham Priory in 1934. Hanna Chapter majored in Cryptozoology at Arkham University. | ||
| 2003 - Breaking Out | 2000 AD #1337-1340, 2003 | see Caballistics, Inc. |
| Baarish-Shammon is a worshiped and feared figure in Kadath, Kiran, Irem, Sarnath, Ib, and Lake Hali. Nephren-Ka is also mentioned in passing. | ||
| 2006 - The Idea of Fear | Arkham Tales: New Terrors Threaten Arkham, 2006 | Anton Zarnak |
| 2006 - Esoterrorism | 2015 novel | see Esoterrorism |
| 2007 - Locke & Key | comic book series, 2008-2013 | see Locke & Key |
| A portal beneath the Keyhouse leads to the plains of Leng. Said house is located in the Massachusetts county named after Lovecraft. | ||
| year unknown - Hellboy II: The Golden Army | 2008 film | see Hellboy |
| Several Elder Things roam the Toll Market. Another is held in a BPRD containment cell. | ||
| 2013 - Get Blank | 2014 novel | see Mr. Blank |
| 2014 - Crimson Shore | 2015 novel | see Aloysius Pendergast |
| 2016 - Guided Tours of Famous Secret Places | Tales of the Shadowmen, Volume 14: Coup de Grace, 2017 | see C. Auguste Dupin |
| ? - All the Devils Are Here | Hellhole: An Anthology of Subterranean Terror, 2018 | see Joe Ledger |
| ? - Dream a Little Dream of Me | The Gods of HP Lovecraft, 2015 | see Sam Hunter |
| ? - The Unlearnable Truths | Limbus, Inc.: Book III, 2016 | see Sam Hunter |
| ? - Black Tide | SNAFU: Black Ops, 2016 | see Kharrn |
| ? - The Weavers in Darkness | SNAFU: Unnatural Selection, 2016 | see Jonathan Crowley |
| ? - Changing Faces | One Bad Week, 2017 | see Jonathan Crowley |
| ? - Skin Flick | Arkham Nights: Tales of Mythos Noir, 2016 | Shadow of the Vampire |
| ? - A Hell Within | 2018 novel | see Wade Griffin |
| ? - Just a Quick Pick Up | Athena Voltaire: Pulp Tales, 2017 | see Athena Voltaire |
| ? - Weltschmerz (or 'Athena Voltaire and the God of Flesh and Bone'), | Athena Voltaire: Pulp Tales, 2017 | see Athena Voltaire |
| ? - The Silent Garden | Carnacki: The Lost Cases, 2016 | see Carnacki |
| ? - A Hideous Communion | Carnacki: The Lost Cases, 2016 | see Carnacki |
| ? - Decently and Quietly Dead | Six Guns Straight from Hell, 2010 | see Mysterious Dave Mather |
| ? - Sheba's Necklace | 2012 novel | see Maxim Gunn |
| ? - Call and Response | Arkham Detective Agency, 2017 | The Midnight Eye Files Piers Knight |
| ? - Miskatonic Contradance | Arkham Detective Agency, 2017 | Piers Knight |
| ? - Family Tradition | Arkham Detective Agency, 2017 | John Thunstone Jules de Grandin |
| ? - Those Folk Below | Arkham Detective Agency, 2017 | Charles St. Cyprian Dracula |
| ? - A Pleasure in Madness | Arkham Detective Agency, 2017 | Piers Knight |
| ? - Monster Hunter Memoirs: Grunge | 2016 novel | see Monster Hunter |
| ? - The Starry Wisdom Library: The Catalogue of the Greatest Occult Book Auction of All Time | 2014 novel | Dracula The Hunchback of Notre-Dame The Name of the Rose Count Magnus Rosemary's Baby Far Below |
| ? - Darkness Under the Mountain | The Monster Hunter Files, 2017 | see Monster Hunter |
| ? - The Great Revelry | Pulpwork Summer Special 2018 | see Charles St. Cyprian |
| ? - The Mad Mummy | The Mad Mummy #1-12, May 2014-December 2016 | see The Mad Mummy |
| ? - Forced Labor | Corporate Cthulhu, 2018 | Charlie Chan Tremors |
| ? - How the Professor Taught a Lesson to the Gnoles | The Mammoth Book of the Adventures of Professor Moriarty, 2015 | see Sherlock Holmes |
| ? - Happy Forever | Dark Cities, 2017 | Secret Histories |
| ? - Monsterology 101 | Dept. of Monsterology #1-4, October 2013-January 2014 | see Dept. of Monsterology |
| ? - The Trouble with Harry | Dept. of Monsterology #5, October 2014 | see Dept. of Monsterology |
| ? - Sabbaticals | Dept. of Monsterology: Sabbaticals #1-5, 2015 | see Dept. of Monsterology |
| ? - Hell on Earth | 2006 novel | see Caballistics, Inc. |
| ? - Vampirella vs. Reanimator | Vampirella vs. Reanimator #1-4, 2018-2019 | see Vampirella |
| ? - Orbis Tertius | Occult Detective Quarterly #1, Fall 2016 | see Charles St. Cyprian |
| ? - All Hallows Horror | 2017 novel | Zombie Apocalypse! The Beyond Count Magnus |
| ? - The Stuff That Dreams Are Made of | Waiting, 2017 | Kitty Donnelly The Mummy The Hellbound Heart Indiana Jones Doctor Strange Doctor Arcadia |
| ? - The Rondure of Cthulhu | The Necronomicon of Solar Pons, 2020 | see Solar Pons |
| ? - The Meandering Mathematician | The Necronomicon of Solar Pons, 2020 | see Solar Pons |
| ? - The Adventure of the Book and the Gate | The Necronomicon of Solar Pons, 2020 | see Solar Pons |
| ? - Solar Pons and the Testament in Ice | The Necronomicon of Solar Pons, 2020 | see Solar Pons |
| 1932 - The Adventure of the Drowned Genealogist | The Necronomicon of Solar Pons, 2020 | see Solar Pons |
| 1939 - The Man with the Writhing Skin | The Necronomicon of Solar Pons, 2020 | see Solar Pons |
| 1910s - The Devil Tongue of Blue John Gap | The Necronomicon of Solar Pons, 2020 | see Solar Pons |