Sully is a distinctive boys' name in United States, ranking #4595 in 2003 with 18 recorded births. The name reached its all-time peak in 2011 with 42 births ranking #2843. Since 1996, the popularity has increased by 20.0%. In 2003, approximately 1 in every 109,737 boys born was named Sully. RISING Recent data shows the name is currently rising.