Meaning and Origin of: Castor

Boy name origins & meanings

  • Greek : Beaver

Boy name variations

Caster
Castorio
Kastor
Kaster

Family name origins & meanings

  • English : habitational name from places called Caistor, in Lincolnshire and Norfolk, Caister in Norfolk, or Castor in Cambridgeshire, all named with Old English cæster ‘Roman fort or town’.