This is a list of lists of fictional extraterrestrial species and races.
Alphabetical
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z
By medium & franchise
Literature
- List of Noon Universe alien races
Comics
- List of alien races in DC Comics
- List of alien races in Marvel Comics
Film and television
- List of Doctor Who universe creatures and aliens
- List of Star Trek aliens
- List of Star Wars creatures
- Lists of Star Wars species: A–E, F–J, K–O, P–T, U–Z
- Species of the Marvel Cinematic Universe
Games
- Battlelords of the 23rd Century#Races
- Races of Mass Effect
- Races of StarCraft
By appearance
- List of humanoid aliens
- List of avian humanoids
- List of piscine and amphibian humanoids
- List of reptilian humanoids