Cathlin

Cathlin is a feminine name representing a variant spelling of Caitlin, Kathleen, or Cathleen. These names ultimately derive from the Irish name Caitlín, which is a Gaelic form of Katherine, meaning 'pure.' This particular spelling preserves the traditional 'th' combination while streamlining the name to a concise form. Cathlin has a distinctly Irish feel while being slightly less common than other variants, giving it a balance of familiarity and uniqueness. The name has a gentle, lyrical quality that works well across different ages. While never reaching the peak popularity of Kathleen or the more modern Caitlin, Cathlin remains an attractive option for those seeking a name with Celtic roots and a traditional yet distinctive character. Its understated elegance and clear pronunciation add to its appeal.

Pronounced KATH-lin.

As of October 2026, Cathlin ranked #15799 in US births in 2001 SSA, peaked at #4070 in 1951.