Kathleen

Kathleen is the anglicized form of the Irish name Caitlín, itself derived from the Old French Cateline, which traces back to the Greek name Aikaterine — a name of debated origin, possibly connected to the Greek word katharos, meaning pure. The name became widespread in the English-speaking world largely through Irish emigration, carrying strong associations with Ireland and Irish cultural identity. Saint Catherine of Alexandria helped ensure the name's enduring popularity across medieval Europe. Related forms include Catherine, Katherine, Katelyn, and Caitlin.