Kathleen is a distinctive girls' name in United States, ranking #632 in 2011 with 451 recorded births. The name reached its all-time peak in 1996 with 2,107 births ranking #152. Since 1996, the popularity has decreased by 78.6%. In 2011, approximately 1 in every 3,900 girls born was named Kathleen. FALLING Recent data shows the name is currently falling.