Kayleigh is a moderately popular girls' name in United States, ranking #250 in 2007 with 1,396 recorded births. The name reached its all-time peak in 2009 with 1,449 births ranking #227. Since 1996, the popularity has increased by 120.5%. In 2007, approximately 1 in every 1,377 girls born was named Kayleigh. FALLING Recent data shows the name is currently falling.