G
- Gargoyle
- Gelatinous Cube
- Ghast
- Ghost
- Ghoul
- Giant Ape
- Giant Badger
- Giant Bat
- Giant Boar
- Giant Centipede
- Giant Constrictor Snake
- Giant Crab
- Giant Crocodile
- Giant Eagle
- Giant Elk
- Giant Fire Beetle
- Giant Frog
- Giant Goat
- Giant Hyena
- Giant Lizard
- Giant Octopus
- Giant Owl
- Giant Poisonous Snake
- Giant Rat
- Giant Scorpion
- Giant Sea Horse
- Giant Shark
- Giant Spider
- Giant Toad
- Giant Vulture
- Giant Wasp
- Giant Weasel
- Giant Wolf Spider
- Gibbering Mouther
- Glabrezu
- Gnoll
- Gnome, Deep (Svirfneblin)
- Goat
- Goblin
- Gold Dragon Ancient Gold Dragon
- Gold Dragon Wyrmling
- Gorgon
- Gray Ooze
- Green Dragon Ancient Green Dragon
- Green Dragon Wyrmling
- Green Hag
- Grick
- Griffon
- Grimlock
- Guardian Naga
- Gynosphinx