Heydi is a distinctive girls' name in United States, ranking #5660 in 2001 with 20 recorded births. This places Heydi in the top 31% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 43 births ranking #3733. Since 1996, the popularity has increased by 233.3%. In 2001, approximately 1 in every 90,028 girls born was named Heydi. FALLING Recent data shows the name is currently falling.