Kayleigh is a moderately popular girls' name in United States, ranking #266 in 2006 with 1,230 recorded births. The name reached its all-time peak in 2009 with 1,449 births ranking #227. Since 1996, the popularity has increased by 94.3%. In 2006, approximately 1 in every 1,546 girls born was named Kayleigh. FALLING Recent data shows the name is currently falling.