Etymology and OriginCollins is an Anglicized form of the Irish Gaelic surname Ó Coileáin, meaning "descendant of Coileán." The root name Coileán is an Irish byname meaning "whelp, young dog," suggesting a possible original connotation of vigor or loyalty.History and DistributionOriginating in Ireland, particularly in counties Cork and Limerick, the surname Collins spread through the Irish diaspora, notably to the United States, the United Kingdom, Australia, and Canada. Variants include Cullen 2, another Anglicized form of the same Gaelic root.Notable BearersA famous bearer was Michael Collins (1890–1922), an Irish nationalist leader, director of intelligence for the Irish Republican Army, and a key figure in the negotiation of the Anglo-Irish Treaty. He was assassinated during the Irish Civil War in 1922.Meaning: Restrictively the English form of Ó CoileáinOrigin: Irish GaelicType: SurnameUsage Regions: Ireland, United States, United Kingdom, Australia