Heidy is a distinctive girls' name in United States, ranking #1696 in 2018 with 122 recorded births. This places Heidy in the top 9% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2010 with 338 births ranking #809. Since 1996, the popularity has increased by 16.2%. In 2018, approximately 1 in every 13,938 girls born was named Heidy. FALLING Recent data shows the name is currently falling.