Cassiopeia

Cassiopeia or Cassiopea may refer to:

Greek mythology

 * Cassiopeia (mother of Andromeda), queen of Aethiopia and mother of Andromeda
 * Cassiopeia (wife of Phoenix), wife of Phoenix, king of Phoenicia
 * Cassiopeia, wife of Epaphus, king of Egypt, the son of Zeus and Io; mother of Libya

Science

 * Cassiopeia (constellation), a northern constellation representing the queen of Ethiopia
 * Cassiopeia A, a supernova remnant in that constellation
 * Cassiopea, the genus of the "upside-down" jellyfish

Film

 * Cassiopeia (1996 film), a Brazilian CGI film
 * Cassiopeia (2022 film), a South Korean film

Music

 * Cassiopeia (TVXQ), the fan club of South Korean boy band TVXQ
 * "Cassiopeia", a song by Shabütie (now known as Coheed and Cambria) from their 1999 EP The Penelope EP
 * "Cassiopeia", a song by Joanna Newsom from her 2004 album The Milk-Eyed Mender
 * "Cassiopeia", a song by Dragonland from their 2006 album Astronomy
 * "Cassiopeia", a song by Sunny Lax from his 2006 EP P.U.M.A./Cassiopeia
 * "Cassiopeia", a song by Rain from his 2006 album Rain's World
 * "Cassiopeia", a song by Sara Bareilles from her 2013 album The Blessed Unrest

Fictional characters

 * Cassiopeia "Cassie" Sullivan, in The 5th Wave series written by Rick Yancey
 * Cassiopeia, a magical tortoise in Michael Ende's fantasy novel Momo
 * Cassiopeia (Battlestar Galactica), from the television series Battlestar Galactica
 * Cassiopea (Encantadia), the first Queen of Lireo in the Encantadia fantasy series of GMA Network
 * Cassiopeia, the mother of Octavian in The Astonishing Life of Octavian Nothing
 * Cassiopeia, the organizer and leader of "Operation Starfall" in the Starfall Street storyline in Pokémon Scarlet and Violet

Other

 * Casio Cassiopeia, a series of pocket PCs
 * Cassiopeia (train), an overnight rail service in Japan
 * USS Cassiopeia (AK-75), a cargo ship used by the United States Navy in World War II