Kathleen is a moderately popular girls' name in United States, ranking #316 in 2004 with 1,002 recorded births. The name reached its all-time peak in 1996 with 2,107 births ranking #152. Since 1996, the popularity has decreased by 52.4%. In 2004, approximately 1 in every 1,832 girls born was named Kathleen. FALLING Recent data shows the name is currently falling.