Sylvester is a distinctive boys' name in United States, ranking #1931 in 2004 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 2004, approximately 1 in every 31,013 boys born was named Sylvester. STABLE Recent data shows the name is currently stable.