Kelly is a distinctive boys' name in United States, ranking #1249 in 2005 with 127 recorded births. This places Kelly in the top 9% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1996 with 339 births ranking #551. Since 1996, the popularity has decreased by 62.5%. In 2005, approximately 1 in every 15,726 boys born was named Kelly. FALLING Recent data shows the name is currently falling.