Bellatrix is the feminine form of bellator, the Latin word for warrior. It can also mean:

Bellatrix (Gamma Orionis), a star in the constellation of Orion Bellatrix (band) (1992–2001), a former Icelandic rock band Bellatrix, French Navy minesweeping sloop, launched 29 May 1916 USS Bellatrix, a name common to several ships USS Bellatrix (AK-20/AKA-3) (1942–1991), an amphibious cargo ship of the United States Navy USS Bellatrix (AF-62) (1961–1968), a combat stores ship of the United States Navy USNS Bellatrix (T-AKR-288) (1973– ), a ship of the United States Navy Bellatrix Lestrange, a character from the Harry Potter novels Bellatrix Aerospace, an Indian private aerospace manufacturer and small satellite company Bellatrix Female Warriors, a British Women's professional wrestling promotion Bellatrix - former UK and World Beatbox Champion Bellatrix, the codename for a cancelled implementation of the IBM Amazon instruction set architecture.