Cailan

Cailan is a modern masculine name with Celtic roots. It may be derived from the Irish name Caoilán (pronounced kee-lawn), meaning 'slender' or 'pure,' or it could be a variant of Cailean, the Scottish Gaelic form of Colin. Some also connect it to the Irish word 'caol' meaning 'narrow.' With its soft sound and Gaelic heritage, Cailan appeals to parents seeking a name with Celtic roots that's not overly common. The name has gained modest popularity in recent decades, particularly in Ireland, Scotland, and among families with Celtic heritage. Cailan offers a contemporary feel while maintaining traditional roots, striking a balance between uniqueness and accessibility with its pleasing sound and straightforward pronunciation.

Cailan is also given to girls.

Pronounced KAY-lahn.

As of October 2026, Cailan ranked #8399 in US births in 2024 SSA, peaked at #5752 in 2012.