Heydi is a distinctive girls' name in United States, ranking #4678 in 2002 with 26 recorded births. The name reached its all-time peak in 2008 with 43 births ranking #3733. Since 1996, the popularity has increased by 333.3%. In 2002, approximately 1 in every 69,108 girls born was named Heydi. FALLING Recent data shows the name is currently falling.