Kelly is a popular girls' name in United States, ranking #95 in 1999 with 3,420 recorded births. This places Kelly in the top 1% of ranked US girls' names for the year. Its actual usage is classified as Popular. The name reached its all-time peak in 1996 with 4,734 births ranking #73. Since 1996, the popularity has decreased by 27.8%. In 1999, approximately 1 in every 519 girls born was named Kelly. FALLING Recent data shows the name is currently falling.