Meaning and Origin of: Colahan

Family name origins & meanings

  • Irish : possibly an Anglicized form of Gaelic Ó Cathaláin ‘descendant of Cathalan’, a diminutive of Cathal (see Cahill). It may also be from Mac Uallocháin ‘son of Uallachán’, a personal name from a diminutive of uallach ‘proud’.