Kayleigh is a moderately popular girls' name in United States, ranking #321 in 2001 with 962 recorded births. The name reached its all-time peak in 2009 with 1,449 births ranking #227. Since 1996, the popularity has increased by 52.0%. In 2001, approximately 1 in every 1,872 girls born was named Kayleigh. FALLING Recent data shows the name is currently falling.