List of legendary creatures (U) explained

1. Ubume (Japanese) – Ghosts of women who died in childbirth
2. Uchek Langmeidong (Meitei mythology) – Semi human, semi hornbill creature
3. Ukko (Finnish) – Finnish sky deity
4. Uma-no-ashi (Japanese) – Horse's leg which dangles from a tree and kicks passersby
5. Umibōzu (Japanese) – Ghost of drowned priest
6. Umi-nyōbō (Japanese) – Female sea monster who steals fish
7. Undead (Worldwide) – Dead that behave as if alive
8. Underwater panther (Native American) – Feline water spirit
9. Undine (Alchemy) – Water elemental
10. Unhcegila (Lakota) – Dragon
11. Unicorn (Medieval Bestiaries) – Horse-like creature with the legs of an antelope, the tail of a lion and a single magical healing horn.
12. Unktehi (Lakota) – Serpentine rain spirit
13. Unktehila (Lakota) – Reptilian water monster
14. Upinis (Lithuanian) – River spirit
15. Ur (Mandaean) – King of the World of Darkness, often portrayed as a dragon or snake
16. Urayuli (Native American) – Hairy giant
17. Uriaș (Romanian) – Giant
18. Urmahlullu (Mesopotamian) – Lion-human hybrid guardian spirit
19. Ushi-oni (Japanese) – Bull-headed monster
20. Utukku (Akkadian) – ″Underworld messenger spirit″
21. Uwan (Japanese) – Spirit that shouts to surprise people