Keilly is a distinctive girls' name in United States, ranking #7251 in 2002 with 15 recorded births. This places Keilly in the top 40% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 48 births ranking #3382. In 2002, approximately 1 in every 119,788 girls born was named Keilly. STABLE Recent data shows the name is currently stable.