Sully is a distinctive boys' name in United States, ranking #4349 in 2007 with 23 recorded births. The name reached its all-time peak in 2011 with 42 births ranking #2843. Since 1996, the popularity has increased by 53.3%. In 2007, approximately 1 in every 90,228 boys born was named Sully. RISING Recent data shows the name is currently rising.