Cathleen

Meaning & origin

Cathleen, a distinctly Irish variant of Katherine, has seen a notable decline in usage since its mid-20th-century peak. First recorded in U.S. data in 1896, it reached its highest rank in 1958, when it was a common choice for baby girls. Since 1985, its trajectory has been steadily falling, reflecting a broader shift away from traditional Irish names in favor of shorter, more modern forms. The name's spelling distinguishes it from the more frequently used Kathleen, yet both share the same Greek-derived meaning of 'purity'. While Cathleen does not appear among the top states in recent decades, its history as a favored Irish name remains evident in diasporic communities.

Cathleen is an anglicized spelling of the Irish name Caitlín, itself a Gaelic form of Katherine. The name ultimately derives from the Greek Aikaterinē, whose meaning is debated but traditionally associated with 'pure' (from katharos). It entered Irish usage through the spread of Christianity and became particularly popular in Ireland and among the Irish diaspora.