Heydi is a distinctive girls' name in United States, ranking #5482 in 2003 with 22 recorded births. The name reached its all-time peak in 2008 with 43 births ranking #3733. Since 1996, the popularity has increased by 266.7%. In 2003, approximately 1 in every 83,048 girls born was named Heydi. FALLING Recent data shows the name is currently falling.