Leslie is a moderately popular girls' name in United States, ranking #111 in 1998 with 3,079 recorded births. The name reached its all-time peak in 2003 with 3,639 births ranking #91. Since 1996, the popularity has increased by 15.6%. In 1998, approximately 1 in every 574 girls born was named Leslie. FALLING Recent data shows the name is currently falling.