US Popularity Rank: 5414

Origin: Gaelic

Meaning: Girl; Pure

Cailyn is a feminine name of Gaelic and Greek origin. A variant of the Irish word cailín, it translates to “girl,” making it a unique way to help baby embrace their feminine side. Cailyn also comes from the Greek name Aikaterī́nē or Catherine, which means “pure.” Since baby’s going to be entering the world with a clean slate and innocent eyes, the name Cailyn will fit them seamlessly.