Kelly is a moderately popular girls' name in United States, ranking #119 in 2002 with 2,852 recorded births. The name reached its all-time peak in 1996 with 4,734 births ranking #73. Since 1996, the popularity has decreased by 39.8%. In 2002, approximately 1 in every 630 girls born was named Kelly. FALLING Recent data shows the name is currently falling.