- Hollow
- Hollow (Gears of War)
- Hollow Waif
- Hominus Nocturna
- Homo Superior
- Homunculus
- Homunculus (Fullmetal Alchemist)
- Hong Meiling
- Hook Horror
- Hoop Snake
- Hopkinsville Goblins
- Hopper
- Hopper Bug
- Hopper Nest
- Hopping Metroid
- Hormagaunt
- Horned Reaper
- Host
- Hot Rod
- Hound of Tindalos
- Houndeye
- Hugag
- Hulk
- Human-Reaper
- Humungousaur
- Hungarian Horntail
- Hunter
- Hunter (Dead Space)
- Hunter (Left 4 Dead)
- Hunter Elite
- Hunter Ing
- Hunter Kai
- Hunter Metroid
- Hunting Horror
- Huron
- Husk
- Husk (Minecraft)
- Hyampom Hog Bear
- Hybrid Dragon
- Hydra (Gears of War)
- Hydra (Mother Hydra)
- Hydra (Outer God)
- Hydra (Skylanders)
- Hydromander
- Hyper-Zoanoid Team Five
- Hyper Goomba
- Hyperion
- Hyperworm
- Hypno
- Hypnos T-Type
- Hyōsube
- Hziulquoigmnzhah
- Iapetus
- Iblis
- Iblis (Sonic)
- Iblis Biter
- Iblis Golem
- Iblis Taker
- Iblis Worm
- Ice Gamin
- Ice Golem (Malifaux)
- Ichtyocentaurs
- Icrotic Slime
- Idh-yaa
- Ifrit
- Ifrit (Sonic the Hedgehog)
- Iggy Koopa
- Igharta
- Illithid
- Illuge
- Iluzija
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