List of Animals that start with U
- Uakari
- Uaru Cichlid
- Uguisu
- Uinta Ground Squirrel
- Uintatherium
- Ulysses Butterfly
- Umbrellabird
- Unau (Linnaeus’s Two-Toed Sloth)
- Underwing Moth
- Upland Sandpiper
- Ural owl
- Urechis unicinctus (Penis Fish)
- Urial
- Uromastyx (Spiny-Tailed Lizard)
- Urutu Snake
- Utonagan
