title: Attorney General O'Brien
text: # Attorney General O'Brien
  
  Attorney General O'Brien may refer to:
  
  * Denis O'Brien (politician) (1837–1909), Attorney General of New York
  * Ignatius O'Brien, 1st Baron Shandon (1857–1930), Attorney General for Ireland
  * Peter O'Brien, 1st Baron O'Brien (1842–1914), Attorney General for Ireland
  