Heydi is a distinctive girls' name in United States, ranking #7565 in 2011 with 16 recorded births. The name reached its all-time peak in 2008 with 43 births ranking #3733. Since 1996, the popularity has increased by 166.7%. In 2011, approximately 1 in every 109,925 girls born was named Heydi. FALLING Recent data shows the name is currently falling.