Sylvester is a distinctive boys' name in United States, ranking #2085 in 2008 with 67 recorded births. The name reached its all-time peak in 1997 with 103 births ranking #1178. Since 1996, the popularity has decreased by 25.6%. In 2008, approximately 1 in every 30,447 boys born was named Sylvester. STABLE Recent data shows the name is currently stable.