Heidy is a distinctive girls' name in United States, ranking #1690 in 2017 with 127 recorded births. The name reached its all-time peak in 2010 with 338 births ranking #809. Since 1996, the popularity has increased by 21.0%. In 2017, approximately 1 in every 13,590 girls born was named Heidy. FALLING Recent data shows the name is currently falling.