Christian: cleric, paladin, angel, demon, grim, atonement, create food and water, cure disease, cure blindness, resurrection, tongues, water walk, lay on hands, holy water, Limbo, St Cuthbert
Celtic: druid (blight, polymorph, fog cloud), bard (magic music), sorcerer (Merlin), afanc (Welsh, 1983), athach (Scottish, 1985), banshee (Irish, 1977), behir (Scottish, 1983), bodak (Scottish, 1983), boobrie (Scottish) brownie (Scottish, ToH, 1977), buckawn (Scottish, ToH, 1983), cooshee (Scottish, ToH, 1983), drow (Scottish), firbolg (Irish, 1983), fomorian (Irish, 1983), green hag (shellycoat, 1983), grugach (gruagach, Irish, 1983), kelpie (Scottish, ToH, 1981), korred (Breton, ToH, 1983), leprechaun (Irish, ToH), merrow (Irish), pech (Scottish, ToH), pixie (1974), selkie (Scottish), sidhe (bralani, ghaele, lillend), sidhe (MDN), spriggan (Cornish, ToH, 1990), Balor, Oghma
Norse: berserker, dragon (firedrake, Fafnir), elf (1974), dark elf, dwarf (1974), duergar (1983), fire giant (Surtr, 1974), frost giant (Thrym, 1974), kobold (1974), linnorm, svirfneblin (1981), troll, wight (draugr, 1974), worg (warg), hammer of thunderbolts (Mjölnir), girdle of giant strength (Megingjörð), gauntlets of ogre power (Járngreipr), Wild Hunt, Tyr
Paracelsus: gnome (1974), homonculus, salamander (1975), sylph (1977)
Chinese: gold dragon (1974), chromatic dragon (mahjong), dragon horse (ToH, 1983), dragon turtle, dragonne (shishi?, 1977), foo lion (shishi, ToH, 1983), foxwoman, ki-rin (1976), lung dragon (lung-wang, pan, shen, t'ien, 1981), mist dragon (ToH, 1983), ravid (SRD)
Greek: amphisbaena (ToH), centaur (1974), Cerberus (ToH), chimera (1974), cyclops, daemon (ToH), dryad (1974), erinyes (1977), faerie dragon (pyrausta, ToH, 1983), iron golem (Talos, 1975), gorgon (khalkotauroi, 1974), harpy (1975), gynosphinx, hydra, lamia (1977), maenad, medusa (ToH), mermaid? (1974), minotaur (1974), nereid (ToH, 1983), nymph (1975), pegasus, phoenix, pseudodragon (pyrausta), satyr (1977), shade (1983), storm giant (Zeus?, 1975), sirine (1983), titan (1974), triton (1975), wand, Elysium, River Styx, Horsing Around (dungeon), Selene, Tyche
English: annis (Black Annis, 1983), atomie (ToH, 1983), barghest (1983), boggart (ToH, 1983), boggle (1983), bugbear (1975), cloud giant (Jack and the Beanstalk, 1974), death knight (Green Knight, 1981), ear seeker (earwig, ToH), ettin (1977), grig (1983), hobgoblin, killmoulis (ToH, 1981), redcap, will-o'wisp (1975), yeth hound (1983), Seeling and Unseelie Courts, Feywild, Titania, Oberon
Medieval: ankheg (ant-lion?, 1977), ant-lion (ToH), basilisk, cambion (ToH, 1983), cockatrice (1974), drake (ToH), goblin (anagram: nilbog (ToH), magmin, 1971), griffon (1974), hellhound (1975), hippocampus (ToH, 1977), hippogriff, imp (1977), kraken, manticore (1974), sea hag (1975), sprite (ToH), unicorn (1974), werewolf (1974, wyvern (1974), changeling (MDN)
Arabic: dervish, al-mi'raj (ToH, 1981), genie (efreet (1974), marid, jann, shaitan), ghoul, roc (1974), sea-horse, magic carpet, City of Brass, Bahamut (1975)
Jewish: clay golem (1975), dybbuk, goliath (2004), guardinal (avoral, leonal, seraph?), leviathan, succubus (1976), blade barrier, flame blade, insect plague, Abyss, Asmodeus (1977), Chemosh, Habakkuk
French: apparition (ToH), babau, gargoyle (ToH, 1974), ogre (1974), revenant, tarrasque (1983)
Vedic: asura, bhuta (ToH), deva (1983), marilith (Mara, 1974), marut, naga, rakshasa (1976), dancing weapon, Nirvana, Ravana
Theosophy: deva (solar (1983), planetar), dragonborn (Lemurian, 2006), astral projection, Astral Plane, Ethereal Plane
Occultism: familiar, agathion, mandragora (ToH), roving mauler (Buer), orthon, archdemon (duke)
Mesopotamian: alu demon (ToH), lammasu, scorpionfolk (MM2), sirrush, shedu (ToH), tablets of destiny, Tiamat (1975)
Gnostic: archon, demiurge (ToH), monadic deva (ToH, 1991)
Slavic: destrachan (yrthak, bukavac?, SRD), lich (Koschei, 1975), vodyanoi (1981)
Finnish: Loviatar, Mielikki, Lemminkäinen
SE Asian: berbalang, vargouille (penanggalan (1981), 1983), mana
Amerindian: couatl (1976), winged serpent (couatl, 1993), huecuva (ToH, 1981)
Australian: bunyip (ToH, 1981)
?: nightmare (hell horse, 1977)
Derivatives
drider (drow + spider), arrowhawk (salamander, SRD), tojanida (salamander, SRD), shield guardian (iron golem, SRD), dracolisk (dragon + basilisk, ToH, 1983), pyrolisk (fire + cockatrice, ToH, 1983), shadow mastiff (hellhound), mephit (imp, 1981), ogrillon (ogre, ToH, 1981), aasimar (cambion, 1994), tiefling (cambion, 1994)
J.R.R. Tolkien: burglar, ranger, elf (grey elf, high elf, wood elf), half-elf, dwarf, halfling (hobbit, 1974), goblin, hobgoblin (uruk-hai, 1974), orc (1974), red dragon, eye of the deep (Eye of Sauron, ToH), ettercap (attercop, 1989), giant spider, treant (ent, 1974), balor (balrog), quickwood (ToH), black willow (Old Man Willow), oliphant (ToH), stone giant (1974), wight (barrow-wight (ToH)), spectre (1974), wraith (ringwraith, 1974), worg (warg), giant eagle, werebear (Beorn, 1974), arrow of slaying (Bard's arrow), bane weapon (orc-bane), elven cloak, elven boots, mithral, ring of invisibility, rope of climbing, hold portal, knock, light
H.P. Lovecraft (read): aboleth (1983), delver (dhole?), grick (dhole?), carrion crawler (dhole?, 1975), ghast (ghoul), howler ("dog-faced howler"?), locathah (deep one, 1977), kuo-toa (deep one), skum (deep one, 1993), chaos beast (shoggoth, 1994), gibbering mouther (shoggoth), chuul (mi-go, SRD, 2000), brain collector (mi-go), worm that walks, whisperer in the dark (MDN), Far Realms, Dreamland, Elder Evils (Great Old Ones)
Robert E. Howard (read): sword and sorcery, barbarian, carnivorous ape, loxo (Yag-kosha, 1991), serpentfolk (1983)
Poul Anderson: law & chaos, paladin (mount), warlock, troll (1977), nixie (1974), kelpie (ToH), swanmay (1983), holy avenger (Cortana), alter self, fog cloud, geas, magic mouth, unseen servant (aerial servant (ToH, 1977), invisible stalker (1974)), dwarven racial skills
Jack Vance: wizard (Vancian magic), demodand (deodand, ToH), grue (1983), hypnotic pattern (felojun's second hypnotic spell), imprisonment (the spell of forlorn encystment), (the excellent) prismatic spray, bag of holding, boots of striding and springing (live boots), Ioun stones, robe of eyes (Chun the Unavoidable's), Dirdir (dungeon), Ioun
Fritz Leiber: thief (use magic device), thief's guild, cloaker, demilich (1983), wererat (1975), potion of diminution, RPG city (Lankhmar), Aarth, Issek of the Jug
Michael Moorcock: neutral, drow (Melnibonéan), elemental (air, earth, fire, water (1974), belker (1998), rast (1998), xorn (1977)), intelligent weapon (Stormbringer), planes, planar capital (Tanelorn), Animal Lords (ToH), Arioch, Elemental Lords
Edgar Rice Burrough (read): assassin's guild?, dinosaurs, dire ape, girallon (white ape, SRD, 2000), thri-kreen (green martian, 1983), spider eater (sith, SRD, 2000), phantasmal force spells, Hollow Earth
Dante (read): bearded devil/barbazu (barbariccia), horned devil/cornugon (malebranche, 1977), geryon (ToH, 1977), pit fiend (Malacoda, 1977), Nine Hells, City of Dis
Roger Zelazny: thief (hide in shadows, climb), shade (1983), elven boots, shadow walk, Plane of Shadow
L. Sprague de Camp: spell components (Harold Shea), frost worm (SRD, 2000), remorhaz (Remora, 1977), summon monster (Novaria), Prime Plane (Novaria)
A. E. van Vogt: displacer beast (coeurl, 1975 ), xill (ixtl, 1981), City of the Gods
Sterling Lanier: psionics (attack, defense, dragging attention?), giant animals, green slime (1974), Gamma World
Margaret St. Clair: choker (voom?, 1993), gnoll, gray render (rotten-smelling man?, SRD, 2000), mega dungeon
Philip José Farmer: pocket plane (World of Tiers)
William Gibson: cyberpunk, matrix (Neuromancer)
Brian Lumley: mindflayer (Cthonian), neothelid
A. Meritt: modron, shadow (Creep, Shadow, Creep!, 1975)
H.G. Wells: grimlock (morkoth (1975), morlock, 1981), mongrelman (Moreau, ToH, 1983), Moreau (MDN)
Frank Herbert: prana knight (MDN), purple worm (sandworm, 1974)
Lord Dunsany (read): gnoll (1974)
Colin Wilson: brain mole (1991), intellect devourer (1976), thought eater (1976) (The Mind Parasites)
Jorge Luis Borges: carbuncle (ToH, 1981), peryton, zaratan (1993)
Lewis Carroll: vorpal sword, Dungeonland (dungeon), The Land Beyond the Magic Mirror (dungeon)
Richard Sharpe Shaver: derro (1983)
Jean Paul: doppelganger (phasm (SRD), 1975)
Gardner Fox: lich (1975)
Donald Wandrei: gelatinous cube (The Destroying Horde, 1974)
Mary Shelly: flesh golem (1975)
Larry Niven: gith (thrintun, 1981), mana
Rudyard Kipling: banderlog (ToH)
Alan Garner: svart (1981)
Jack Williamson? John W. Campbell?: psionics
Edmund Spenser: ring of protection (The Legend of Cambel and Triamond)
John Milton: Pandemonium
?: scarecrow (1981)
Derivative
blink dog (displacer beast, 1975), phase spider (displacer beast, 1975), ethereal filcher (displacer beast, SRD), thoqqua (purple worm, 1981), tendriculos (shambling mound, SRD?), lurker above (cloaker, ToH, 1977), roper (cloaker, 1977), darkmantle (cloaker, SRD), flind (gnoll, ToH, 1981), azer (fire dwarf, 1983), lizardfolk (serpentfolk, 1975), troglodyte (serpentfolk, 1977)
Universal Classic Monsters: cleric (Van Helsing), flesh golem, mummy (1974), vampire (1974), werewolf
horror movies: green slime?, black pudding (The Blob), ethereal marauder (bipedal graboid), clay golem, demonic auto (Christine), demonic semi-truck (Trucks), giant ants (formian (1983), Them!), keeper (stranger), krenshar (The Thing), kyton/chain devil (Hellraiser), puppeteer, skeleton (crypt thing (ToH, 1981), 1974), zombie (1974), crawling claw (MDN), demonic machine (MDN), satanic ichor (Prince of Darkness, MDN), magic missile (The Raven), shield (The Raven)
fantasy movie: nagpa (skeksis, 1986)
kungfu movies: monk
other movies: stone to flesh (7 Faces of Dr. Lao), Monkeying Around/Isle of The Ape (dungeon, King Kong)
Kaiju toys: bulette, owlbear (giant owl (SRD), 1975), rust monster (link)
comics: mimic (Plastic Man, 1977), shambling mound (The Heap, 1977), bag of tricks (Felix the Cat), Bottle City (dungeon, Kandor)
cartoon: sahuagin (Saturnian, 1977), myconid (Fantasia, 1983)
George Lucas: otyugh (dianoga, 1977), beam sword (MDN)
folklore: ghost, allip (vengeful ghost, SRD), gremlin, jack-o-lantern (ToH), sandman (ToH, 1981), tooth fairy (MDN), verbeeg (Paul Bunyan, 1983), wendigo
UFO: Crawfordsville monster (MDN), grey (alien probe, fraal, MDN), gardhyi (man in black, MDN), mothfolk (MDN)
Cryptozoology: assassin vine (vampire vine?, SRD), su-monster (succarath), drop bear (MDN), mapinguari (MDN), Mongolian death worm (MDN), Montauk monster (MDN), sasquatch (weren, MDN), skunk ape (MDN), thunderbird (ToH, MDN), yeti (ToH, MDN, 1977)
Paranormal: night hag (1977), poltergeist (ToH), shadow (nightshade), rogue tulpa (MDN)
Dark*Matter: elohim (aasimar, MDN), etoile (MDN), kinori (MDN), luciferan (tiefling, MDN), sand slave (MDN)
Original: achaierai (1981), aranea (spiderwere), choker, devourer
Original 3.5: digester (burbur), phantom fungus, gray render, mohrg, razor boar (MM2)
Original Modern: demon (festergog, rotlord, skinhusker), ooze (terrestrial effluvium), ash wraith, breathsnatcher, grendelspawn, leechwalker, living dumpster, platonic, retriever, roach thrall, toxyderm, vivilor, liquefied zombie
OGL: Freeport, Skraag, Stormhaven, Highthrone, Stonebridge, Sheoloth
Homebrew: Pun-Pun
Hellwig: wargame
Jim Dunnigan: Outdoor Survival
Jeff Perren, Gary Gygax: Chainmail
David Wesely: Braunstein
Dave Arneson: RPG, dungeon, XP
Dave Arneson, Gary Gygax: D&D
Tom Pigeon: GM Emulator