Kathleen

Kathleen is an Anglicization of the Irish name Caitlín, itself the Irish form of Catherine, which derives from the Greek name Aikaterine. The ultimate root is debated, but it is widely associated with the Greek word katharos, meaning pure or clean. The name has been popular throughout Ireland and among Irish diaspora communities for centuries, often evoking a strongly Celtic identity despite its Greek origins. Related forms include Katelyn, Caitlin, Katherine, and Catherine.