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“Variant of O'Sullivan — descendant of Súileabhán ('dark-eyed one' (Irish))” — Irish origin
Girl's name · #2432 in the US (2025) · 2020s
Sullivan reached its best rank, #1954, in 2024 and ranked #2432 in 2025. About 1,400 girls have carried it since 1993. In South Carolina it runs about 12× its national rate. It is also an American family name — about 221,000 people carry it as a surname, according to US census data. About 92% of babies named Sullivan in recent years have been boys. Sully is a short form of Sullivan.
Appears in 2020-2025 birth records of 6 states. See the full state-by-state map on this page.
Among 29 notable people named Sullivan:
Similar names: Rooney · Sumaya · Arlo · Morrigan · Delany · Aislyn
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