Kathleen is a distinctive girls' name in United States, ranking #823 in 2015 with 341 recorded births. The name reached its all-time peak in 1996 with 2,107 births ranking #152. Since 1996, the popularity has decreased by 83.8%. In 2015, approximately 1 in every 5,234 girls born was named Kathleen. FALLING Recent data shows the name is currently falling.