Robert O'Brien
About
Robert O'Brien may refer to:Robert O'Brien (artist), from British Hong Kong
Robert O'Brien (canoeist), American sprint canoer
Robert O'Brien (cricketer) (1869-1922), Australian cricketer
Robert O'Brien (executive) (1907–1997), Hollywood businessman
Robert O'Brien (1908–1987), American
Robert O'Brien, former Air Secretary
Robert C. O'Brien, US National Security Advisor
Robert C. O'Brien (author) (1918–1973), US journalist and children's book author
Bob O'Brien, baseball player
Bob O'Brien (basketball) (1927–2008), American basketball player