Hilary is a distinctive girls' name in United States, ranking #3040 in 2015 with 56 recorded births. This places Hilary in the top 16% 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 54.5%. In 2015, approximately 1 in every 31,869 girls born was named Hilary. FALLING Recent data shows the name is currently falling.