Kathleen is a distinctive girls' name in United States, ranking #662 in 2012 with 427 recorded births. This places Kathleen in the top 3% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 1996 with 2,107 births ranking #152. Since 1996, the popularity has decreased by 79.7%. In 2012, approximately 1 in every 4,124 girls born was named Kathleen. FALLING Recent data shows the name is currently falling.