Hilary is a distinctive girls' name in United States, ranking #1155 in 2004 with 196 recorded births. The name reached its all-time peak in 2005 with 219 births ranking #1090. Since 1996, the popularity has increased by 59.3%. In 2004, approximately 1 in every 9,368 girls born was named Hilary. FALLING Recent data shows the name is currently falling.