Flat-faced fruit-eating bat 
Flat-headed Cat 
Forest giant squirrel 
Formosan rock macaque 
Fossa 
Four-striped grass mouse 
Four-toed Sengi 
Fox squirrel 
Francis' Wooly Horseshoe Bat 
Fringe-eared oryx 
Furry-eared dwarf lemur 
Galápagos fur seal 
Galápagos sea lion 
Gambian epauletted fruit bat 
Gambian sun squirrel 
Ganges River Dolphin 
Gaur 
Gee's golden langur 
Gelada 
Gemsbok 
Geoffroys cat 
Geoffroys spider monkey 
Geoffroys tamarin 
Gerenuk