Kayleigh is a moderately popular girls' name in United States, ranking #246 in 2011 with 1,286 recorded births. The name reached its all-time peak in 2009 with 1,449 births ranking #227. Since 1996, the popularity has increased by 103.2%. In 2011, approximately 1 in every 1,368 girls born was named Kayleigh. FALLING Recent data shows the name is currently falling.