Heidi is a moderately popular girls' name in United States, ranking #340 in 2025 with 894 recorded births. The name reached its all-time peak in 2008 with 1,167 births ranking #289. Since 1996, the popularity has decreased by 10.1%. In 2025, approximately 1 in every 1,798 girls born was named Heidi. STABLE Recent data shows the name is currently stable.