Kathleen is a distinctive girls' name in United States, ranking #596 in 2010 with 495 recorded births. The name reached its all-time peak in 1996 with 2,107 births ranking #152. Since 1996, the popularity has decreased by 76.5%. In 2010, approximately 1 in every 3,591 girls born was named Kathleen. FALLING Recent data shows the name is currently falling.