Kellsey is a distinctive girls' name in United States, ranking #11088 in 2009 with 10 recorded births. The name reached its all-time peak in 1996 with 24 births ranking #4386. Since 1996, the popularity has decreased by 58.3%. In 2009, approximately 1 in every 183,687 girls born was named Kellsey. FALLING Recent data shows the name is currently falling.