People — R
Robert O. Bowen
1920 – 2003
novelist
Robert O'Brien
1869 – 1922
cricketer
Robert O'Brien
1907 – 1997
businessperson
Robert O'Brien
b. 1933
canoeist
Robert O'Brien
1908 – 1987
Formula One driver
Robert O'Brien
b. 1939
painter
Robert O'Brien
Robert O. Briggs
1927 – 2008
bandleader
Robert O'Callaghan
b. 1710
Robert O'Callaghan
1777 – 1840
military personnel
Robert O. Collins
1933 – 2008
historian
Robert O'Connor
b. 1959
writer
Robert O. Cook
1903 – 1995
audio engineer
Robert O. Cox
1917 – 2013
politician
Robert O. Crockett
1881 – 1955
politician
Robert O. Davis
1910 – 1992
politician
Robert O'Dell
b. 1937
researcher
Robert O'Donnell
b. 1994
cricketer
Robert O'Donoghue
b. 1980
politician
Robert O'Driscoll
b. 1989
hurler
Robert O'Driscoll
1938 – 1996
writer
Robert O'Dwyer
1862 – 1949
conductor
Robert O. Fink
1905 – 1988
papyrologist
Robert O'Gorman
Australian rules football umpire
Robert O'Handley
1942 – 2013
academic
Robert O'Hara
b. 1975
theatre director
Robert O'Hara Burke
1821 – 1861
explorer
Robert O. Harris
1929 – 2007
lawyer
Robert O. Harris
1854 – 1926
politician
Robert O. Hickman
1926 – 2019
inventor
Robert O. Homme
b. 1945
diplomat
Robert O. Hunt
b. 1873
politician
Robert O. Lawton
1924 – 1980
university teacher
Robert O'Loughlin
b. 1852
Robert O. Lowery
1916 – 2001
official
Robert O. Lukowsky
1927 – 1981
lawyer
Robert O. Marshall
1939 – 2015
Robert O. Mendelsohn
b. 1952
economist
Robert O. Miller
1935 – 2009
Robert O'Neal
1961 – 1995
Robert O'Neal
b. 1971
American football player
Robert O'Neil Bristow
1926 – 2018
novelist
Robert O'Neill
1883 – 1961
Australian rules football player
Robert O. Norris, Jr.
1880 – 1960
politician
Robert O. Perrin
1823 – 1878
farmer
Robert O. Peters
b. 1973
actor
Robert O. Pihl
b. 1939
scientist
Robert O. Ragland
1931 – 2012
composer
Robert O'Reilly
b. 1950
film actor
Robert O'Riordan
1943 – 2004
writer
Robert O. Ritchie
b. 1948
materials scientist
Robert O. Scholz
1895 – 1978
military personnel
Robert O. Smith
1942 – 2010
voice actor
Robert O. Snyder
1917 – 2016
politician
Robert O. Tyler
1831 – 1874
military officer
Robert O. Waring
1919 – 1976
diplomat
Robert O. Wilson
1906 – 1967
physician
Robert O. Work
b. 1953
Robert O. Wray
b. 1957
military officer
Robert O. Young
b. 1952
non-fiction writer
Robert Oakeshott
1933 – 2011
journalist
Robert Oaks
b. 1952
politician
Robert Oatey
1942 – 2019
Australian rules football player
Robert Obadia
b. 1942
businessperson
Robert Obaz
b. 1973
politician
Robert Ober
1881 – 1950
film director
Robert Oberlender
b. 1956
chemist
Robert Oberrauch
b. 1965
entrepreneur
Robert O’Brien FitzRoy
1839 – 1896
naval officer
Robert Obrist
1958 – 2025
agronomist
Robert Obst
b. 1995
association football player
Robert Ochsenfeld
1901 – 1993
physicist
Robert Odell
1896 – 1984
art director
Robert Odeman
1904 – 1985
composer
Robert Odongkara
b. 1989
association football player
Robert Odu
b. 1999
association football player
Robert Oelman
1909 – 2007
businessperson
Robert of Alençon
1344 – 1377
Robert of Arbrissel
1047 – 1117
theologian
Robert of Aumale
feudatory
Robert of Auxerre
1156 – 1212
chronicler
Robert of Bar, Count of Marle and Soissons
1390 – 1415
feudatory
Robert of Bath
Catholic priest
Robert of Bellême, 3rd Earl of Shrewsbury
b. 1052
feudatory
Robert of Beverley
stonemason
Robert of Braybrooke
1168 – 1210
Robert of Bridlington
writer
Robert of Burgundy, bishop of Langres
1059 – 1111
priest
Robert of Bury
1101 – 1181
child actor
Robert of Caiazzo
1065 – 1115
military personnel
Robert of Caserta
1150 – 1183
aristocrat
Robert of Châtillon
1150 – 1210
Catholic priest
Robert of Chester
mathematician
Robert of Chichester
Catholic priest
Robert of Courçon
1160 – 1218
Catholic priest
Robert of Courtenay
1201 – 1228
ruler
Robert of Courtenay, Lord of Champignelles
1168 – 1239
politician
Robert of Cricklade
1100 – 1170
canon regular
Robert of Dramelay
1201 – 1270
Robert of Durazzo
1326 – 1356
lord