The Planetary Society
- Country: United States
- Type: Organization
- Website: planetary.org
- Update: 05-02
The Planetary Society (The Planetary Society) is a non-profit astronomical organization founded in 1980, located in Pasadena, California, USA, with more than 100,000 members, focusing on the exploration of Mars and other bodies in the solar system, the search for extraterrestrial life, and so on.