US Popularity Rank: 11480

Origin: Gaelic

Meaning: Slender; White, fair; Pure

Caoilainn is a feminine name of Irish origin meaning "slender," "white," "fair," or "pure." It comes from the words caol, which means "slender," and fionn, meaning "fair." The name can be traced back to the Irish female saint Saint Caolainn, who lived in the 6th century and is celebrated on February 3rd. This beautifully lyrical name is a wonderful way to recognize baby's Irish heritage or any fair features that might run in your family.