Jill is a distinctive girls' name in United States, ranking #972 in 1999 with 213 recorded births. The name reached its all-time peak in 1996 with 343 births ranking #650. Since 1996, the popularity has decreased by 37.9%. In 1999, approximately 1 in every 8,328 girls born was named Jill. RISING Recent data shows the name is currently rising.