Sylvester is a distinctive boys' name in United States, ranking #2166 in 2010 with 62 recorded births. The name reached its all-time peak in 1997 with 103 births ranking #1178. Since 1996, the popularity has decreased by 31.1%. In 2010, approximately 1 in every 30,942 boys born was named Sylvester. STABLE Recent data shows the name is currently stable.