Caileen

Caileen is a feminine name with Irish and Gaelic roots, likely derived from 'Cailín' meaning 'girl' in Irish. It can also be viewed as a modern variation of names like Kathleen, Kaylin, or Caitlin. The name combines the popular 'Cai' prefix with the melodic '-leen' suffix, creating a name that sounds both contemporary and traditionally Celtic. Caileen emerged in popularity during the late 20th century when Irish names began gaining wider appreciation outside Ireland. While never reaching mainstream popularity, Caileen appeals to parents seeking a name with Irish heritage that remains relatively uncommon. The name conveys a sense of delicacy and grace while maintaining Celtic strength.

Pronounced kay-LEEN.

As of October 2026, Caileen ranked #12148 in US births in 2014 SSA, peaked at #7779 in 1988.