Sylvester is a distinctive boys' name in United States, ranking #2224 in 2025 with 64 recorded births. The name reached its all-time peak in 1997 with 103 births ranking #1178. Since 1996, the popularity has decreased by 28.9%. In 2025, approximately 1 in every 26,689 boys born was named Sylvester. STABLE Recent data shows the name is currently stable.