Sy is a distinctive boys' name in United States, ranking #3985 in 2004 with 23 recorded births. The name reached its all-time peak in 2003 with 33 births ranking #2986. Since 1996, the popularity has increased by 187.5%. In 2004, approximately 1 in every 86,296 boys born was named Sy. STABLE Recent data shows the name is currently stable.