Galaxia

Galaxia may refer to:
 * The superior form of Gaia (Foundation universe), a planet in Isaac Asimov's Foundation Series
 * Galaxia (plant), a genus in the iris family
 * "Galaxia", a 1996 trance song by Ferry Corsten
 * Sailor Galaxia, an antagonist from the original Sailor Moon anime series
 * Galaxia, the sword Meta Knight wields in the Kirby video game series
 * Galaxia, Hong Kong, a private housing estate in Diamond Hill, Hong Kong
 * Operation Galaxia, the codename for 1978 attempted coup d'état in Spain