OSullivans
OSullivans is a surname of Irish origin, anglicized from the Gaelic Ó Súilleabháin, meaning descendant of Súilleabhán, a personal name associated with the O’Sullivan lineage that historically held lands in the southwest of Ireland, especially in what is now County Cork. The name is among the more common Gaelic surnames in Ireland and has spread widely through emigration, becoming established in Ireland’s counties as well as in the Irish diaspora abroad.
In modern usage, OSullivans can refer to individuals bearing the surname as well as to businesses or
Variants of the surname include O'Sullivan, Sullivan, Sulivan, and other spellings, reflecting differences in Anglicization and