Sullivan is a moderately popular boys' name in United States, ranking #366 in 2022 with 901 recorded births. The name reached its all-time peak in 2024 with 1,011 births ranking #339. Since 1996, the popularity has increased by 1,244.8%. In 2022, approximately 1 in every 1,936 boys born was named Sullivan. RISING Recent data shows the name is currently rising.