Andorian
- Appearance: Mammalian; dark- to pale-blue skin, white hair, two antennae
- Homeworld: Andor
- Major offworld populations: Alrond, Threllvia IV, Weytahn
- Cobalt-based blood
- Four genders: Chan, Thaan, Zhen, Shen
- Shen source of gametes, chan and thaan contribute genetic material, zhen carries to term in pouch on their back
- Imperial andorian surnames start with gender prefix (ch', th', zh', sh') followed by clan names
- Andorian formerly heavily clan based