Niall O'Brien

Niall O'Brien may refer to:

• Niall O'Brien (actor) (1946–2009), Irish actor
• Niall O'Brien (cricketer) (born 1981), Irish cricketer
• Niall O'Brien (hurler) (born 1994), Irish hurler
• Niall O'Brien (priest) (1939–2004), Irish Columban missionary priest

See also

• Neil O'Brien (disambiguation)