Castor - name meaning, origin

The boy's name Castor \c(a)-

is of Greek origin, and its meaning is "beaver". In classical myth, along with Pollux, one of the heavenly twins immortalized in the constellation Gemini. They were considerd the patron gods of seafarers, appearing to them in Saint Elmo's fire.

Castor has 3 variant forms: Caster, Castorio and Kastor.

For more information, see also the related name Pollux.

Baby names that sound like Castor are Coster and Kester.

Castor is an uncommon first name for men but a very common last name for both men and women (#5833 out of 88799). (1990 U.S. Census)

Displayed below is the baby name popularity trend for the boy name Castor. Compare Castor with its variant forms and related boy names.