Alleigh is a distinctive girls' name in United States, ranking #3646 in 2012 with 43 recorded births. The name reached its all-time peak in 2012 with 43 births ranking #3646. Since 1996, the popularity has increased by 377.8%. In 2012, approximately 1 in every 40,947 girls born was named Alleigh. FALLING Recent data shows the name is currently falling.