This is the list for all biological classifications of all 20 million sentient species (5 million known and 15 million unknown) in the Star Wars galaxy (and an estimated 100 billion-10 trillion others in the universe), with canon, EU, non-canon, and fanon elements. There are also three humanoid types; including humanoid, non-humanoid, and semi-humanoid.
They come in all shapes, sizes, colors, unusual features, etc. Their biology and information are also collected in separate The Essential Guide to Sentient Species reference books and in-universe books (written by Ann Margaret Lewis and illustrated by R.K. Post).
- Mammal
- Reptile
- Avian
- Amphibian
- Insect
- Crustacean
- Arachnid
- Cephalopod
- Gastropod
- Piscine
- Annelid
- Echinoderm
- Bivalve
- Chilopod
- Botanical
- Reptomammal
- Reptavian
- Mammavian
- Insectomammal
- Reptamphibian
- Insectavian
- Amphibimammal
- Fungi
- Cnidarian
- Amorphous
- Craniopod
- Mineral
- Cyborg/droid
- Exotic
- Polymorph (Shapeshifter)
- Hermaphrodite (Asexual)
- Near-Human