Sundai is a distinctive girls' name in United States, ranking #13038 in 2025 with 7 recorded births. The name reached its all-time peak in 2023 with 13 births ranking #8426. Since 1996, the popularity has increased by 40.0%. In 2025, approximately 1 in every 229,610 girls born was named Sundai. FALLING Recent data shows the name is currently falling.