People — D
Denis O'Donnell
1875 – 1933
businessperson
Denis O'Donovan
b. 1955
politician
Denis O'Driscoll
b. 1952
Gaelic football player
Denis O'Dwyer
Gaelic football player
Denis O'Gorman
1914 – 2005
hurler
Denis O'Hare
b. 1962
stage actor
Denis O'Hearn
b. 1953
sociologist
Denis O'Keeffe
hurler
Denis O'Leary
1863 – 1943
politician
Denis O'Miachain
Catholic priest
Denis O'Neil
b. 1936
sailor
Denis O'Regan
b. 1953
photographer
Denis O'Regan
Denis O'Reilly
b. 1952
Denis O'Riordan
b. 1940
hurler
Denis O'Rourke
b. 1946
politician
Denis O'Sullivan
b. 1948
golfer
Denis O'Sullivan
b. 1989
Gaelic football player
Denis Obua
1947 – 2010
association football player
Denis Obua
b. 1980
civil servant
Denis Odoi
b. 1988
association football player
Denis of Braganza, Count of Lemos
1481 – 1516
aristocrat
Denis of Hungary
1210 – 1270
Denis of Paris
201 – 250
Catholic priest
Denis of the Nativity
1600 – 1638
cartographer
Denis Olegov
b. 1998
poet
Dênis Oliveira de Souza
b. 1983
association football player
Denis Olivera
b. 1999
association football player
Denis Omedi
b. 1996
association football player
Denis Omerbegović
b. 1986
association football player
Denis Onyango
b. 1985
association football player
Denis Ormerod
1923 – 2005
military personnel
Denis Örs
b. 2005
short-track speed skater
Denis Osadchenko
b. 1990
association football player
Denis Osborne
1932 – 2014
diplomat
Denis Osin
mathematician
Denis Osipau
b. 1983
freestyle skier
Denis Osipov
b. 1987
ice hockey player
Denis Osokin
b. 2002
association football player
Denis Ostier
b. 1993
voice actor
Denis Oswald
b. 1947
rower
Denis Oswald Jordan
1914 – 1982
chemist
Denis Ovens
b. 1957
darts player
Denis Owen
1931 – 1996
naturalist
Denis P. Galvin
b. 1938
civil servant
Denis Pack
1772 – 1823
military personnel
Denis Pagan
b. 1947
Australian rules football player
Denis Pain
1936 – 2019
lawyer
Denis, Palatine of Hungary
Denis Pankratov
b. 1974
swimmer
Denis Papin
1647 – 1713
mathematician
Denis Paradis
b. 1949
lawyer
Denis Parfyonov
b. 1987
politician
Denis Parkinson
1915 – 2004
motorcycle racer
Denis Parshin
b. 1986
ice hockey player
Denis Parsons Burkitt
1911 – 1993
military physician
Denis Pasler
b. 1978
politician
Denis Pätoprstý
b. 1997
ice hockey player
Denis Patrick O'Brien
b. 1939
economist
Denis Patry
b. 1953
ice hockey player
Denis Pauli
b. 1978
politician
Denis Payre
b. 1963
entrepreneur
Denis Payton
1943 – 2006
saxophonist
Denis Pchelintsev
b. 1979
association football player
Denis Pearce
1896 – 1968
fencer
Denis Péc
1220 – 1280
politician
Denis Pederson
b. 1975
ice hockey player
Denis Peel
1886 – 1927
cricketer
Denis Pelizzari
b. 1960
sport cyclist
Denis Peploe
1914 – 1993
painter
Denis Peposhi
b. 1995
association football player
Denis Pereira Gray
b. 1935
physician
Denis Peremenin
b. 1976
association football player
Denis Perera
1930 – 2013
engineer
Denis Perez
b. 1965
ice hockey player
Denis Periša
b. 1983
Computer hacker
Denis Perron
1938 – 1997
politician
Denis Pervushin
b. 1977
association football player
Denis Pétau
1583 – 1652
historian
Denis Peterson
b. 1944
painter
Denis Petouchinski
b. 1967
athletics competitor
Denis Petrashov
b. 2000
swimmer
Denis Petro
b. 1999
association football player
Denis Petrov
b. 1968
figure skater
Denis Pettiaux
b. 1956
teacher
Denis Petukhov
b. 1978
figure skater
Denis Phipps
b. 1985
baseball player
Denis Pidev
b. 1992
association football player
Denis Piel
b. 1944
photographer
Denis-Pierre-Jean Papillon de la Ferté
1727 – 1794
opera director
Denis Pigott
b. 1946
equestrian
Denis Pimankov
b. 1975
swimmer
Denis Pineda
b. 1996
association football player
Denis Pinto
b. 1995
association football player
Denis Pirie
2000 – 2025
politician
Denis Pischikov
b. 1983
serial killer
Denis Pittard
b. 1945
rugby league player
Denis Pitts
1930 – 1994
journalist
Denis Pjeshka
b. 1995
association football player
Denis Platonov
b. 1981
ice hockey player