Sun is a distinctive boys' name in United States, ranking #6754 in 2025 with 13 recorded births. The name reached its all-time peak in 2022 with 19 births ranking #5184. Since 1996, the popularity has increased by 85.7%. In 2025, approximately 1 in every 131,390 boys born was named Sun. FALLING Recent data shows the name is currently falling.