Feck off

[ihateall96]

Humans and demihumans

Bugbear
Drow (dark elf)
Dwarf
Elf
Gnome
Goblin
Groll
Halfling / Hobbit
Human
Kobold
Orc
Troll

Fey

Brownie
Dryad
Fairy
Leprechaun
Naiad
Nereid
Nymph
Pixie
Satyr
Sprite

Extraplanar/otherworldly

Angel
Demon
Devil
Djinn
Efreet
Elemental
Imp

Monsters adapted from outside sources

Banshee
Behemoth
Beholder
Basilisk
Centaur
Cerberus
Chimaera
Cockatrice
Cyclops
Doppelgnger
Dragon (also, "Wyrm"): European dragon, Chinese dragon
Ettin
Gargoyle
Giant
Golem
Gorgon (Medusa)
Gremlin
Griffin
Hag
Harpy
Hippocampus
Hippogriff
Hobgoblin
Homunculus
Hydra
Illithid (Mind flayer)
Ki-rin
Kraken
Lamia
Lindworm
Leviathan
Manticore
Merfolk
Minotaur
Naga
Ogre
Phoenix
Roc
Salamander
Sea serpent
Sphinx
Tarasque
Unicorn
Werewolf (and other lycanthropes)
Wyvern
Yeti

Monsters created especially for role-playing games

Gelatinous cube
Githyanki

Undead

Banshee
Ghost
Ghoul
Lich
Mummy
Revenant
Skeleton
Spectre
Vampire
Wight
Wraith
Zombie