Sully is a distinctive boys' name in United States, ranking #4952 in 2013 with 19 recorded births. The name reached its all-time peak in 2011 with 42 births ranking #2843. Since 1996, the popularity has increased by 26.7%. In 2013, approximately 1 in every 99,540 boys born was named Sully. RISING Recent data shows the name is currently rising.