Dark-eyed one
Derived from the Irish surname Ó Súileabháin, it most likely means 'dark-eyed' or 'black-eyed.' The name is associated with one of the most powerful and populous clans in Munster, Ireland. It has transitioned from a traditional surname to a popular first name in the United States.
About 1,083 boys were named Sullivan in 2025.
US births per 5-year period, 1990–present (SSA data).
Australian actor known for 'Blindspot'
Union Army officer known for his poignant letter to his wife
A character in the video game series · Fallout
Main character James P. Sullivan · Monsters, Inc.
The same feel as Sullivan — far less common.
Hidden gems that stand out.
