Kayleigh is a moderately popular girls' name in United States, ranking #239 in 2008 with 1,435 recorded births. The name reached its all-time peak in 2009 with 1,449 births ranking #227. Since 1996, the popularity has increased by 126.7%. In 2008, approximately 1 in every 1,318 girls born was named Kayleigh. FALLING Recent data shows the name is currently falling.