Kathleen is a moderately popular girls' name in United States, ranking #262 in 2002 with 1,208 recorded births. The name reached its all-time peak in 1996 with 2,107 births ranking #152. Since 1996, the popularity has decreased by 42.7%. In 2002, approximately 1 in every 1,487 girls born was named Kathleen. FALLING Recent data shows the name is currently falling.