Meaning and history
Colin has two established histories in English. It is an Anglicized form of the Scottish Gaelic name Cailean, traditionally connected with a word for a young dog or whelp, and it also developed in medieval England as a diminutive of Nicholas, meaning "victory of the people." Notable bearers include actors Colin Firth and Colin Farrell and former U.S. secretary of state Colin Powell.
Colin moved from #335 to #343 for boys between 2024 and 2025. Its highest annual birth count came in 2004, with 5,122 births.