Kayleigh is a moderately popular girls' name in United States, ranking #227 in 2009 with 1,449 recorded births. The name reached its all-time peak in 2009 with 1,449 births ranking #227. Since 1996, the popularity has increased by 128.9%. In 2009, approximately 1 in every 1,268 girls born was named Kayleigh. FALLING Recent data shows the name is currently falling.