Sy is a distinctive boys' name in United States, ranking #3358 in 1999 with 24 recorded births. The name reached its all-time peak in 2003 with 33 births ranking #2986. Since 1996, the popularity has increased by 200.0%. In 1999, approximately 1 in every 80,004 boys born was named Sy. STABLE Recent data shows the name is currently stable.