Kayleigh is a moderately popular girls' name in United States, ranking #364 in 1998 with 793 recorded births. The name reached its all-time peak in 2009 with 1,449 births ranking #227. Since 1996, the popularity has increased by 25.3%. In 1998, approximately 1 in every 2,228 girls born was named Kayleigh. FALLING Recent data shows the name is currently falling.