Namesakes
Dennis Ritchie
(m) 1941-2011 
Notable Scientists and Inventors
Dennis Gabor
(m) 1900-1979
Nobel Prize Winners 1971 (physics)
Notable Scientists and Inventors
Dennis Hopper
(m) 1936-2010
Notable Actors and Entertainers (actor)
Dennis Bergkamp
(m) 1969-
Notable Athletes (soccer)
Dennis Quaid
(m) 1954-
Notable Actors and Entertainers (actor)
Dennis Rodman
(m) 1961-
Hall-of-Famers 2011 (basketball)
Notable Athletes (basketball)
Dennis Farina
(m) 1944-2013
Notable Actors and Entertainers (actor)
Dennis Haysbert
(m) 1954-
Notable Actors and Entertainers (actor)
Dennis Wilson
(m) 1944-1983
Rock and Roll Hall-of-Famers 1988 The Beach Boys
Dennis Johnson
(m) 1954-2007
Hall-of-Famers 2010 (basketball)
Notable Athletes (basketball)
Dennis Franz
(m) 1944-
Emmy Award Winners 1994; 1996; 1997; 1999 NYPD Blue (actor)
Notable Actors and Entertainers (actor)
Denny Doherty
(m) 1940-2007
Rock and Roll Hall-of-Famers 1998 The Mamas & the Papas
Dennis Mitchell
(m) 1966-
Olympic Medalists 1992; 1996 100 m; 4x100 m relay (bronze/gold/silver)
William Gargan
(a.k.a. Dennis) (m) 1905-1979
Notable Actors and Entertainers (actor)
Dennis
(m)
Hurricanes and Tropical Storms 2005 (hurricane)
Dennis Edwards
(m) 1943-2018
Notable Musicians
Rock and Roll Hall-of-Famers 1989 The Temptations
Dennis Waterman
(m) 1948-2022
Notable Actors and Entertainers (actor)
Dennis Banks
(m) 1937-2017
Notable Activists and Revolutionaries
Earlene Brown
(a.k.a. Dennis) (f) 1935-1983
Olympic Medalists 1960 shot put (bronze)
Dennis Boutsikaris
(m) 1952-
Notable Actors and Entertainers (actor)
Dan Brouthers
(a.k.a. Dennis) (m) 1858-1932
Hall-of-Famers 1945 (baseball)
Notable Athletes (baseball)
Dennis van der Geest
(m) 1975-
Olympic Medalists 2004 judo (bronze)
Dennis Eckersley
(m) 1954-
Hall-of-Famers 2004 (baseball)
Most Valuable Players 1992 baseball
Notable Athletes (baseball)
Dennis Dunaway
(m) 1946-
Rock and Roll Hall-of-Famers 2011 Alice Cooper
Dick Hanley
(a.k.a. Dennis) (m) 1936-2022
Olympic Medalists 1956 swimming - 4x200 m freestyle relay (silver)
Dave Wilson
(a.k.a. Dennis) (m) 1960-
Olympic Medalists 1984 swimming - 100 m backstroke (silver)
Dennis Blake
(m) 1970-
Olympic Medalists 1996 4x400 m relay (bronze)
D. J. Enright
(a.k.a. Dennis) (m) 1920-2002
Notable Writers
Denny McLain
(m) 1944-
Most Valuable Players 1968 baseball
Dennis Reynolds
(m)
Fictional Characters from Television 2005 It's Always Sunny in Philadelphia
Dennis
(m)
Shakespearian Characters As You Like It
Dennis Finch
(m)
Fictional Characters from Television 1997 Just Shoot Me!
Dennis Klinsmann
(m)
Fictional Characters from Television 1994 Heartbreak High
Dennis
(m)
Hurricanes and Tropical Storms 1981 (hurricane)
Dennis
(m)
Hurricanes and Tropical Storms 1987 (storm)
Dennis
(m)
Hurricanes and Tropical Storms 1993 (storm)
Dennis
(m)
Hurricanes and Tropical Storms 1999 (hurricane)
Dennis Creevey
(m)
Harry Potter Characters
Dionysius Fugishima
(a.k.a. Dennis) (m) ?-1622
Saints