An Irish surname meaning 'dark-eyed one' or 'little dark one.' Also used as a given name.
From Irish Gaelic 'Ó Súileabháin,' meaning 'descendant of Súileabhán.' The root 'súil' means 'eye' and 'dubh' means 'dark.' One of the most common Irish surnames, brought to America during 19th-century immigration waves.
Sullivan is the third most common surname in Ireland and became so associated with Irish identity that 'John L. Sullivan,' the famous 19th-century boxer, helped cement the stereotype of the 'fighting Irish' in American popular culture!
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