List of legendary creatures (I)

Incubus, 1870
  1. Iannic-ann-ôd (Breton) – Ghost of a drowned person
  2. Iara (Brazilian) – Female water spirit
  3. Ibong Adarna (Philippine) – Bird that changes color when it finishes a song
  4. Ichchhadhari Nag (Hindu) – Shapeshifting venomous snakes
  5. Ichimoku-nyūdō (Japanese) – One-eyed kappa from Sado Island
  6. Ichiren-Bozu (Japanese) – Animated prayer beads
  7. Ichneumon (Medieval Bestiaries) – Dragon-killing animal
  8. Ichthyocentaur (Greek) – Human-fish-horse hybrid
  9. Iele (Romanian) – Female nature spirits
  10. Ifrit (Arabian) – Fire genie
  11. Ijiraq (Inuit) – Spirit that kidnaps children
  12. Ikiryō (Japanese) – Can be considered a 'living ghost', as it is a person's spirit outside their body
  13. Ikuchi (Japanese) – Sea serpent that travels over boats in an arc while dripping oil
  14. Iku-Turso (Finnish) – Sea monster
  15. Il-Belliegħa (Maltese) – Malevolent well spirit
  16. Imp (Medieval) – Small demonic servant
  17. Impundulu (Southern Africa) – Avian, vampiric lightning spirit
  18. Imugi (Korean) – Flightless, dragon-like creatures (sometimes thought of as proto-dragons)
  19. Inapertwa (Aboriginal) – Simple organisms, used by creator-gods to make everything else
  20. Incubus (Medieval folklore) – Male night-demon and seducer
  21. Indrik (Russian) – One-horned horse-bull hybrid
  22. Indus Worm (Medieval Bestiaries) – Giant, white, carnivorous worm
  23. Inkanyamba (Zulu) – Horse-headed serpent
  24. Inugami (Japanese) – Dog spirit
  25. Ior (Romanian) – Giant creature, with good spirit
  26. Ipotane (Greek) – Two-legged horse-human hybrid, (as opposed to the four-legged centaur)
  27. Ippon-datara (Japanese) – One-legged mountain spirit
  28. Iratxoak (Basque) – Small demonic servants
  29. Irin (Jewish) – Fallen angels
  30. Ishigaq (Inuit) – Little people
  31. Island Satyr (Medieval Bestiaries) – Savage human-goat hybrid from a remote island chain
  32. Isonade (Japanese) – Shark-like sea monster
  33. Ittan-momen (Japanese) – Ghostly aerial phenomenon that attacks people
  34. Iwana-bōzu (Japanese) – Char which appeared as a Buddhist monk