Etymology

O'Sullivan

Today it means: A surname from Irish. Full definition →

Irish Ó Súilleabháin
Ask AI about its historyChatGPTClaudePerplexityGoogle AIGrok

The story

  1. Irish · derived fromÓ Súilleabháin
  2. English todayO'Sullivan

From Irish Ó Súilleabháin.

Words from the same roots

IrishÓ Súilleabháin all →

Sullivan

Etymology from Wiktionary, CC BY-SA 4.0.