Kathleen is a variant of the Irish name Cateline, which is derived from the Latin name Katherine, meaning 'pure'. The name Kathleen was popularized by Saint Catherine of Alexandria in medieval Europe.
In Christian tradition, Saint Catherine is venerated as a martyr and a patron saint. In Ireland, Kathleen is often associated with good fortune and prosperity.
People named Kathleen are typically seen as warm-hearted, gentle, and compassionate individuals who value harmony and balance in their lives.
The name Kathleen remains popular in Ireland and the UK, but its usage has declined somewhat in recent years. It is still occasionally used in the US, often with a nod to its Irish heritage.