- goosander
- goose
- goral
- gorilla
- goshaw
- goshawk
- grass
- grasshopper
- grackle
- greenfinch
- gregarious
- grilse
- grosbeak
- grebe
- green linnet
- green-peak
- greenlinnet
- groper
- ground-squirrel
- groundling
- grunting-cow
- gregariousness
- ground-hog
- grouper
- guacharo
- gurnard
- hag
- hagfish
- halcyon
- hammer-head
- hamster
- grunting-ox
- grysbok
- gudgeon
- gurnet
- haddock
- halibut
- halliard
- halyard
- hamadryad
- hare
- harlequin
- harvest-mite
- harvester
- harvestman
- haulyard
- hair seal
- hake
- halal
- harrier
- hart
- harvest-bug
- hawk
- hawfinch
- he
- hedge-sparrow
- hedgehog
- helices
- heliozoan
- helix
- hemipterous
- hen-harrier
- herbivora
- herbivorous
- hernshaw
- heron
- hibernant
- hermit-crab
- hern
- herring
- hibernate
- hibernation
- hinny
- hippocampus
- hirundine
- hobby
- hinnie
- hippocampi
- hippopotamus
- hirudinoid
- hind
- holothurian
- honey-bee
- hoody
- hoopoe
- hooves
- horse
- honey eater
- honey-buzzard
- hoodie
- horse-mackerel
- honey sucker
- hooded
- hoof
- hop
- hornet
- horntail
- horse-fly
- house
- house-fly