Edward O'Brien
Edward, Ed, Eddie or Ted O'Brien may refer to:
- Ed O'Brien (born 1968), guitarist for Radiohead
 - Sir Edward O'Brien, 2nd Baronet (1705–1765), Irish politician and baronet
 - Edward Dominic O'Brien (1735–1801), Irish law enforcement official and British Army officer
 - Sir Edward O'Brien, 4th Baronet (1773–1837), Irish politician and baronet
 - Edward O'Brien, 14th Baron Inchiquin (1839–1900), Irish peer
 - Edward Joseph Harrington O'Brien (1890–1941), American writer, poet, editor and anthologist
 - Edward O'Brien (mural artist) (1910–1975), American artist and muralist
 - Edward O'Brien (athlete) (1914–1976), American 400m runner
 - Edward O'Brien (Irish republican) (1974–1996), IRA member
 - Edward Conor Marshall O'Brien (1880–1952), Irish aristocrat, architect and sailor
 - Eddie O'Brien (baseball) (1930–2014), American former Major League Baseball player
 - Eddie O'Brien (hurler) (born 1945), Irish hurler
 - Eddie O'Brien (footballer) (1883–1934), Australian rules footballer
 - Ted O'Brien, an Australian politician (born 1974)
 - Ted O'Brien (American politician) (born 1957)
 
See also
- Edward O'Bryen (c. 1753–1808), sometimes O'Brien, Royal Navy admiral
 - Edmond O'Brien (1915–1985), American actor and director