Hilary is a distinctive girls' name in United States, ranking #1723 in 1998 with 92 recorded births. This places Hilary in the top 10% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2005 with 219 births ranking #1090. Since 1996, the popularity has decreased by 25.2%. In 1998, approximately 1 in every 19,205 girls born was named Hilary. FALLING Recent data shows the name is currently falling.