Sullivan is a moderately popular boys' name in United States, ranking #398 in 2020 with 769 recorded births. The name reached its all-time peak in 2025 with 1,083 births ranking #314. Since 1996, the popularity has increased by 1,047.8%. In 2020, approximately 1 in every 2,243 boys born was named Sullivan. RISING Recent data shows the name is currently rising.
Sullivan is an Irish surname-style name traditionally linked to dark-eyed roots. It feels polished, upbeat, and full of character.
The name moved from a well-known Irish surname into modern first-name use as surname choices became more fashionable. Its buoyant sound has helped it stand out from shorter options.