Sylvester is a distinctive boys' name in United States, ranking #1914 in 2005 with 67 recorded births. This places Sylvester in the top 14% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1997 with 103 births ranking #1178. Since 1996, the popularity has decreased by 25.6%. In 2005, approximately 1 in every 29,808 boys born was named Sylvester. STABLE Recent data shows the name is currently stable.