Lists of fictional species
Encyclopedia
Alien
- List of fictional extraterrestrials
- List of fictional extraterrestrials (A-I)
- List of fictional extraterrestrials (J-Q)
- List of fictional extraterrestrials (R-Z)
- List of fictional assimilating races
Mythical
- List of Greek mythological creatures
- List of dragons in mythology and folklore
- List of giants in mythology and folklore
Reptilian
- List of dragons
- List of dragons in literature
- List of dragons in popular culture
- List of fictional dinosaurs
Theological
- List of theological angels
- List of fictional angels
- List of theological demons
- List of fictional demons