Sylvester is a distinctive boys' name in United States, ranking #2127 in 2021 with 68 recorded births. The name reached its all-time peak in 1997 with 103 births ranking #1178. Since 1996, the popularity has decreased by 24.4%. In 2021, approximately 1 in every 25,709 boys born was named Sylvester. STABLE Recent data shows the name is currently stable.