O'Brien was the surname of an wizarding family. It is unknown if they were pure-blood, or had both Muggle and magical heritage.

Known family members


O'Brien is an Anglicised form of the Irish Gaelic surname Ó Briain, meaning "descendant of Brian."[1] Brian is an Irish male given name thought to derive from the Celtic element bre, meaning "hill," or, by extension, "high" or "noble."[2]

Notes and references

  1. "O'Brien" on
  2. "Brian" on Behind the Name