# Castor

Castor most commonly refers to:
* Castor (star), 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 (software), data binding framework for Java
* CASTOR (nuclear waste), cask for storage and transport of radioactive material
* CASTOR experiment, "Centauro and Strange Object Research" at CERN
* CASTOR (spacecraft), proposed space telescope
* Castor sugar, fine sugar
* Caster (or Castor), an undriven wheel
* 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
### 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 persona in the video game Persona 3. Castor is used by one of the playable characters, Shinjiro Aragaki

## 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 tributary), 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

## Other uses

* Castor (band), American rock band
* Castor (cloth), a woollen fabric
* Castor (trucks), a brand used by Swedish truck manufacturers Tidaholm in the 1910s
* Castor Cracking Group, Swedish music group
* HMS Castor, the name of more than one ship of the British Royal Navy
* 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
* Castor hat
* Project Castor, a set of male clones in the TV series Orphan Black
* Castore (brand), British sportswear and athletic clothing company
* Castor (1917 ship), 1917 Polish tugboat