Castor most commonly refers to: *

Castor (star) Castor is the second-brightest object in the zodiac constellation of Gemini (constellation), Gemini. It has the Bayer designation α Geminorum, which is Latinisation of names, Latinised to Alpha Geminorum and abbreviated Alpha Gem ...

, a star in the Gemini constellation *Castor, one of the Dioscuri/Gemini twins Castor and Pollux in Greco-Roman mythology Castor or CASTOR may also refer to:

Science and technology

*Castor (rocket stage), a family of solid-fuel rocket stages *Castor (framework), Castor (software), data binding framework for Java *CASTOR (nuclear waste), ''CASTOR'' (nuclear waste), cask for storage and transport of radioactive material *CASTOR experiment, ''CASTOR'' experiment, "Centauro and Strange Object Research" at CERN *CASTOR (spacecraft), proposed space telescope *Castor sugar, fine sugar *Caster, Caster (or Castor), an undriven wheel *Caster angle, Caster (or Castor) angle, relevant to a steered wheel

Biology

*Castor oil plant, plant from which castor bean grows **Castor oil, oil of the castor bean **Castor wax, produced from castor oil *''Castor'', a genus name of the beaver **Castoreum, natural scent derived from the beaver

People

Given name

Ancient

*Castor of Rhodes, Greek grammarian and rhetorician *Drusus the Younger (13 BC – 23 CE), Roman consul, son of the Emperor Tiberius, nicknamed "Castor" *Antonius Castor, ancient botanist *Saint Castor, the name of several Christian saints **Castor of Apt (died c. 420), French bishop of Apt **Castor of Karden (died c. 400), German priest and hermit

Modern

*Castor Cantero (1918–?), Paraguayan football player *Castor McCord (1907–1963), American jazz saxophonist *Castor (footballer) (born 1979), Edmilson Ferreira, Brazilian footballer

Surname

*Betty Castor (born 1941), American educator and politician *Brian Castor (1889–1979), English cricketer *Bruce Castor (born 1961), American lawyer and politician *George A. Castor (1855–1906), American politician *Helen Castor (born 1968), English historian *Jean-Victor Castor (born 1962), French politician *Jimmy Castor (1940-2012), American musician *Kathy Castor (born 1966), American politician *Stacey Castor (1968-2016), American murderer *Steve Castor (born 1972/1973), American lawyer

Fiction

*Castor Oyl, fictional character in the ''Popeye'' cartoons *''Castor Troy'', fictional character in the 1997 movie ''Face/Off'', portrayed by Nicolas Cage and John Travolta *''Castor'', fictional character in the video game ''Spartan: Total Warrior'' *''Lord Castor'', fictional character in the 2007 movie ''The Harpy'' *''Castor'', fictional character in ''Tron: Legacy'', portrayed by Michael Sheen *"Castor, Gobernador" fictional character in ''The Courts of the Morning'' by John Buchan *"Castor Wilds" fictional location in ''The Legend of Zelda: The Minish Cap'' by Nintendo *"Castor", fictional creature in the video game ''Persona 3''

Places

*Castor, Alberta, Canada *Queue de Castor River, Eeyou Istchee Baie-James, Jamésie, Nord-du-Québec, Canada *Rivière aux Castors Noirs, river in Quebec, Canada *Castor River (Ontario), Ontario, Canada *Castor, Louisiana, Louisiana, United States *Castor Creek (Little River), Castor Creek, Louisiana, United States *Castor River (Missouri), United-States *Castor (mountain), in the Pennine Alps on the border between Switzerland and Italy *Castor Bay, Auckland, New Zealand *Castor, Cambridgeshire, England *Castor Temple, a summit in the Grand Canyon, United States *Castor, an old name for Caistor St. Edmund, Norfolk, England *Castor (crater) on Saturn's small moon Janus (moon), Janus

Other uses

*Castor (band), American rock band *Castor (cloth), a woollen fabric *Castor Cracking Group, Swedish music group *, the name of more than one ship of the British Royal Navy *Castor (1782 ship), ''Castor'' (1782 ship), a vessel launched in 1782 that made one voyage to Bengal for the British East India Company and that was last listed in 1808. *Castor gloves, gloves made from the skin of lambs or deer *List of headgear , Castor hat *Project Castor, a set of male clones in the TV series Orphan Black *Castore (brand), British sportswear and athletic clothing company