Heydi is a distinctive girls' name in United States, ranking #5264 in 2004 with 24 recorded births. The name reached its all-time peak in 2008 with 43 births ranking #3733. Since 1996, the popularity has increased by 300.0%. In 2004, approximately 1 in every 76,505 girls born was named Heydi. FALLING Recent data shows the name is currently falling.