List of Marvel Comics dimensions
- Alfeim - First appeared in Thor #277 (Nov 1978) by Roy Thomas and John Buscema
- Alter-Earth - First appeared in Fantastic Four #118 (Jan 1972) by Archie Goodwin and John Buscema
- "Ankh" Dimension - First appeared in Iron Man #35 (Mar 1971) by Allyn Brodsky, Gerry Conway, and Don Heck
- Asgard - First appeared in Journey Into Mystery #85 (Oct 1962) by Stan Lee, Larry Lieber and Jack Kirby
- "Astral" Realm of Morgan le Fay - First appeared in Avengers #240 (Feb 1984) by Roger Stern, Ann Nocenti, and Al Milgrom
- Avalon - First appeared in Fantastic Four #54 (GLIMPSE only) (Sep 1966) by by Stan Lee and Jack Kirby
- Badlands (Demon Bear’s realm) - First appeared in New Mutants #20 (Oct 1984) by Chris Claremont and Bill Sienkiewicz
- Bast - First appeared in Iron Man #51 (Oct 1972) by Mike Friedrich and George Tuska
- Beliath - First appeared in Marvel Team-Up #125 (Jan 1983) by J. M. DeMatteis and Kerry Gammill
- Beyond - First appeared in Marvel Super Heroes Secret Wars #1 (May 1984) by Jim Shooter and Mike Zeck
- Biphasia - First appeared in Giant-Size Werewolf #5 (Jul 1975) by Doug Moench and Yong Montano
- The Black Sea - First appeared in Sub-Mariner #40 (Aug 1971) by Gerry Conway and Gene Colan
- Citadel of Silence - First appeared in Avengers Annual #1 (Sep 1967) by Roy Thomas and Don Heck
- Crimson Cosmos (realm of Cyttorak) - First appeared in X-Men #33 (Jun 1967) by Roy Thomas and Werner Roth
- Crystalium - First appeared in Saga of Crystar the Crystal Warrior #1 (May 1983) by Mark Gruenwald, Ralph Macchio, and John Romita, Jr.
- The Dark Dimension (realm of Dormammu)- First appeared in Strange Tales #126 (Nov 1964) by Stan Lee and Steve Ditko
- Dark Realm of the Fomor - First appeared in Avengers #225 (Nov 1982) by Steven Grant and Greg LaRocque
- Death Dimension
- Demon Realm - First appeared in Defenders #58 (Apr 1978) by David Kraft and Ed Hannigan
- Dimension Z - First appeared in Tales to Astonish #49 (Nov 1963) by Stan Lee and Jack Kirby
- Dimension Zero - First appeared in Captain America #202 (Oct 1976) by Jack Kirby
- Dinosaur World (homeworld of Devil Dinosaur - First appeared in Devil Dinosaur #1 (Apr 1978) by Jack Kirby
- Dream Dimension (realm of Nightmare) - First appeared in Strange Tales #110 (Jul 1963) by Stan Lee and Steve Ditko
- Duckworld (homeworld of Howard the Duck) - First appeared in Howard the Duck Magazine #6 (Jul 1980) by Bill Mantlo and Michael Golden
- Earth-Squadron - First appeared in Avengers #85 (Mar 1971) by Roy Thomas and John Buscema
- Feng-Tu - First appeared in Deadly Hands of Kung Fu #19 (Dec 1975) by Chris Claremont and Ruby Nebres
- "Fifth Dimension" (see Xemu/Zemu) - First appeared in Strange Tales #103 (Dec 1962) by Stan Lee, Larry Lieber, and Jack Kirby
- Flatword - First appeared in Fantastic Four #57 (Dec 1966) by Stan Lee and Jack Kirby
- "Fourth Dimension" (home dimension of Mercurio) - First appeared in Thor #208 (Feb 1973) by Gerry Conway and John Buscema
- Fragmented America - First appeared in Iron Man #80 (Nov 1975) by Steve Englehart, Mike Friedrich, and Chic Stone
- The Gorge - First appeared in Iron Man #195 (Jun 1985)
- Hades - First appeared in Thor #130 (Jul 1966) by Stan Lee and Jack Kirby
- The Halls of Fear (realm of the Dweller-in-Darkness) - First appeared in Doctor Strange #32 (Dec 1978) by Roger Stern and Alan Kupperberg
- Hel (realm of Hela)- First appeared in Thor #176 (May 1970) by Stan Lee and Jack Kirby
- Heliopolis - First appeared in Thor #240 (Oct 1975) by Roy Thomas and Sal Buscema
- Hell - First appeared in Silver Surfer #3 (Oct 1968) by Stan Lee and John Buscema
- "Here" and "There" - First appeared in Defenders #115 (Jan 1983) by J.M. DeMatteis and Don Perlin
- Hulk-Worlds - First appeared in Incredible Hulk #302-313.
- Ice World of Ikthalon - First appeared in Marvel Spotlight #14 (Mar 1974) by Steve Gerber and Jim Mooney
- Jakar’s World - First appeared in Captain America #150 (Jun 1972) by Gerry Conway and Sal Buscema
- Jotunheim (Realm of the giants) - First appeared in Journey Into Mystery #112 (Jan 1965) by Stan Lee and Jack Kirby
- K'ai – (Home of Jarella) First appeared in Incredible Hulk #140 (Jun 1971) by Harlan Ellison, Roy Thomas, and Herb Trimpe
- Kalahia (see Thin Man) - First appeared in Mystic Comics #4 (Jun 1940) by Klaus Nordling
- Katharta (realm of Korrek) - First appeared in Giant-Size Man-Thing #3 (Feb 1975) by Steve Gerber and Alfredo Alcala
- Kingdom of Tazza - First appeared in Strange Tales #144 (May 1966) by Roy Thomas and Steve Ditko
- Kismet - First appeared in Warlock #11 (Feb 1976) by Jim Starlin
- Kobar - First appeared in Doctor Strange #65 (Jun 1984) by Roger Stern and Paul Smith
- K'un-L'un - First appeared in Marvel Premiere #15 (May 1974) by Roy Thomas and Gil Kane
- Land of Shades - First appeared in Avengers #49 (Feb 1968) by Roy Thomas and John Buscema
- Land Within - First appeared in Adventure into Fear #22 (Jun 1974) by Steve Gerber and Rich Buckler
- Light Dimension - First appeared in Amazing Spider-Man #203 (Apr 1980) by Marv Wolfman and Keith Pollard
- Limbo (True) - First appeared in Avengers #2 (Nov 1963) by Stan Lee and Jack Kirby
- Limbo-Belasco - First appeared in X-Men #160 (Aug 1982) by Chris Claremont and Brent Anderson
- Limbo-Rom - First appeared in Rom #1 (Dec 1979) by Bill Mantlo and Sal Buscema
- Lockjaw’s Food World - First appeared in Fantastic Four #56 (Nov 1966) by Stan Lee and Jack Kirby
- Luminia - First appeared in Iron Man #25 (May 1970) by Archie Goodwin and Johnny Craig
- Mahkos and Elysia - First appeared in Marvel Team-Up #143 (Jul 1984) by David Michelinie and Greg LaRocque
- Megrim - First appeared in Howard the Duck #22 (Mar 1978) by Steve Gerber and Val Mayerick
- The Microverse - First appeared in Micronauts #1 (X 1979) by Bill Mantlo and Michael Golden
- Netherworld of Eternal Doom - First appeared in Strange Tales #136 (Sep 1965) by Stan Lee and Steve Ditko
- Netherworld of Gulgol - First appeared in Strange Tales #122 (Jul 1964) by Stan Lee and [...] Ayers
- Nirvana - First appeared in Thor #301 (Nov 1980) by Mark Gruenwald, Ralph Macchio, and Keith Pollard
- Olympus - First appeared in Journey into Mystery Annual #1 (1965) by Stan Lee and Jack Kirby
- Ort-Beast - First appeared in Defenders #58 (Apr 1978) by David Anthony Kraft and Ed Hannigan
- Other-Earth - First appeared in Fantastic Four #19 (Oct 1963) by Stan Lee and Jack Kirby
- Other Realm – (see John Jameson) First appeared in Marvel Premiere #45 (Dec 1978) by Dave Kraft and George Perez
- Otherwhere - First appeared in Iron Man #194 (May 1985) by Denny O'Neil and Luke McDonnell
- Phaseworld - First appeared in Doctor Strange Annual #1 (1976) by Marv Wolfman and P. Craig Russell
- Planes of Pohldark - First appeared in Doctor Strange #65 (Jun 1984) by Roger Stern and Paul Smith
- Planets Perilous (Realm of Nebulos) - First appeared in Strange Tales #161 (Oct 1967) by Raymond Marais and Dan Adkins
- Polemachus (home of Arkon) - First appeared in Avengers #75 (Apr 1970) by Roy Thomas and John Buscema
- Purple Dimension - First appeared in Strange Tales #119 (Apr 1964) by Stan Lee and Steve Ditko
- Quadriverse - First appeared in Doctor Strange #19 (Oct 1976) by Marv Wolfman and Alfredo Alcala
- Quarl - First appeared in Ka-Zar #16 (Jun 1976) by Doug Moench and Val Mayerik
- Quasi-Universe - First appeared in Marvel Team-Up #99 (Nov 1980) by Tom DeFalco and Jerry Bingham
- Rammatpolen - First appeared in Fantastic Four Annual #16 (1981) by Ed Hannigan and Steve Ditko
- Realm of the Beasts - First appeared in Alpha Flight #24 (Jul 1985) by John Byrne
- Realm of Madness - First appeared in Doctor Strange #68 (Dec 1984) by Roger Stern and Paul Smith
- Realm of Nothingness - First appeared in Strange Tales #155 (Apr 1967) by Stan Lee and Marie Severin
- Realm of the Shadow Queen - First appeared in Doctor Strange #42 (Aug 1980) by Chris Claremont and Gene Colan
- Realm of the Undying Ones - First appeared in Sub-Mariner #22 (Feb 1970) by Roy Thomas and Marie Severin
- “Reverse Dimension” - First appeared in Avengers #16 (May 1965) by Stan Lee and Jack Kirby
- Rome-World - First appeared in Doctor Strange #46 (Apr 1981) by Roger Stern and Michael Golden
- Runestaff Dimension (see Possessor) - First appeared in Thor #335 (Sep 1983) by Alan Zelenetz and Mark Bright
- S'ahra-Sharn - First appeared in Master of Kung Fu Annual #1 (1976) by Doug Moench and Keith Pollard
- Saku - First appeared in Giant-Size Spider-Man #3 (Jan 1975) by Gerry Conway and Ross Andru
- Sandt - First appeared in Adventure Into Fear #14 (Jun 1973) by Steve Gerber and Val Mayerik
- Shadow Realm - First appeared in Marvel Spotlight #4 (Jan 1980) by Marv Wolfman, Archie Goodwin and Steve Ditko
- Shazana's Realm - First appeared in Strange Tales #133 (Jun 1965) by Stan Lee and Steve Ditko
- "Sixth" Dimension - First appeared in Strange Tales #129 (Feb 1965) by Stan Lee, Don Rico, and Steve Ditko
- Slaveworld - First appeared in Tales to Astonish #41 (Mar 1963) by Stan Lee, Larry Lieber, and Don Heck
- Sominus - (realm of Thog) - First appeared in Adventure into Fear #13 (Apr 1973) by Steve Gerber and Val Mayerik
- Spotworld - (used by the Spot) - First appeared in Spectacular Spider-Man #98 (Jan 1985) by Al Milgrom and Herb Trimpe
- Stormworld - First appeared in Defenders #38 (Aug 1976) by Steve Gerber, Sal Buscema, and Klaus Janson
- Sub-Atomica - (home of the Psycho-Man) - First appeared in Fantastic Four #16 (Jul 1963) by Stan Lee and Jack Kirby
- Sub-Space - First appeared in Fantastic Four #37 (Apr 1965) by Stan Lee and Jack Kirby
- Tagak's World - First appeared in Daredevil #72 (Jan 1971) by Gerry Conway and Gene Colan
- Ta-Lo - First appeared in Thor #301 (Nov 1980) by Mark Gruenwald, Ralph Macchio, Keith Pollard, and Chic Stone
- Terragonia - First appeared in Incredible Hulk #201 (Jul 1976) by Len Wein, Sal Buscema, and Joe Staton
- Therea - First appeared in Man-Thing #1 (Jan 1974) by Steve Gerber and Val Mayerik
- Tunnelworld - First appeared in Defenders #71 (May 1979) by Ed Hannigan, Herb Trimpe, and Jack Abel
- The Un-Place - First appeared in Incredible Hulk Annual #1 (Oct 1968) by Gary Friedrich and Marie Severin
- Weirdworld - First appeared in Marvel Super-Action #1 (Jan 1976) by Archie Goodwin and Tony DeZuniga
- What If? Worlds - First appeared in What If #1 (Feb 1977) by Roy Thomas and Jim Craig
- Zaar - First appeared in Defenders #34 (Apr 1976) by Steve Gerber and Sal Buscema