People starting with D
405,867 records.
- Dennis Kloserassociation football player
- Dennis KnudsenDanish make-up artist
- Dennis Koeckstadtpianist
- Dennis Koehoorndisc jockey, musician
- Dennis Kofi AgbenyadziCentral African Roman Catholic archbishop
- Dennis KohlrussGerman strongman
- Dennis KoisAmerican graphic designer
- Dennis KonuszewskiAmerican professional baseball pitcher
- Dennis KoslowskiOlympic wrestler
- Dennis KozlowskiAmerican businessman
- Dennis KraftGerman bicycle racer
- Dennis KramerGerman-American basketball player (1992–2023)
- Dennis KrauseGerman handball player
- Dennis KriegshauserAmerican politician
- Dennis KrijgsmanDutch association football player
- Dennis KristensenDanish trade unionist
- Dennis KrohneDutch association football player
- Dennis KrullAmerican politician
- Dennis KruppkeGerman footballer
- Dennis KruseAmerican politician
- Dennis KrügerGerman athletics competitor
- Dennis KucharAustralian cardiologist
- Dennis KucinichAmerican politician (born 1946)
- Dennis Kuckuck
- Dennis KuczynskiAmerican football player
- Dennis KuipersDutch racing driver
- Dennis KujurBJMC in Ancient History and Archaeology from JSS College of Arts Commerce And Sc, Bangalore
- Dennis KujurBJMC in Ancient History and Archaeology from Karnatak University, Hubli
- Dennis Kumar MBCA in Java Programming from Amrita School of Arts and Sciences, Chamarajanagar
- Dennis Kundaiin Mechanical Engineering from Maharashtra Academy of Engineering and Educationa, Harare
- Dennis KuruppasseryCatholic priest, Catholic bishop
- Dennis KutriebGerman association football player and coach
- Dennis KuxAmerican diplomat
- Dennis KwokHong Kong politician
- Dennis L KasperAmerican microbiologist
- Dennis L. DutrembleAmerican politician
- Dennis L. FreemanAmerican politician
- Dennis L. HartmannAmerican atmospheric scientist
- Dennis L. Jenkinsarchaeologist
- Dennis L. JonesAmerican politician
- Dennis L. McKiernanAmerican writer
- Dennis L. MontgomeryComputer software designer
- Dennis L. PeckAmerican sociologist
- Dennis L. RasmussenAmerican politician (1929–2018)
- Dennis L. RenaudAmerican politician
- Dennis L. RileyAmerican politician
- Dennis L. SerretteAmerican politician
- Dennis L. ViaUnited States Army four-star general
- Dennis L.A. WhiteAmerican actor
- Dennis LaBountyAmerican politician from Vermont
- Dennis LaceySouth African flying ace
- Dennis Lachtersports agent
- Dennis LajolaAmerican tennis player
- Dennis LakeAmerican congressman in Idaho
- Dennis LamHong Kong ophthalmologist, businessman and politician
- Dennis LambertGreen Party politician
- Dennis LambertAmerican record producer
- Dennis LambourneWelsh association football player
- Dennis LampAmerican baseball player
- Dennis Landerpolitician
- Dennis LandgrafGerman politician (born 2001)
- Dennis Landoltplayer of American football
- Dennis LaneAmerican trade unionist (1881–1942)
- Dennis LangGerman association football player
- Dennis LarsenDanish rower
- Dennis LaRueAmerican ice hockey official
- Dennis Lashmarmotorcycle racer
- Dennis LatimerIrish flying ace (1895-1976)
- Dennis LatosAmerican film director
- Dennis LattimerNew Zealand mural artist (1946–2025)
- Dennis LauHong Kong architect
- Dennis LauMalaysian-Chinese musician (1985-)
- Dennis LaubenthalGerman actor
- Dennis LaurenteFilipino boxer
- Dennis LauschaAmerican Basketball executive
- Dennis LavaB.Sc in Hardware and Networking from Laguna State Polytechnic University, Laguna Niguel
- Dennis Lawfootball player (born 1955)
- Dennis LawHong Kong filmmaker
- Dennis LawrenceTrinidad and Tobago association football player and manager
- Dennis LawrenceOlympic cross-country skier
- Dennis Le GassickAustralian rules footballer
- Dennis LearyAmerican restaurateur and chef
- Dennis Leefilm director, screenwriter
- Dennis LeeCanadian poet, teacher, editor, critic
- Dennis Lee AskewAmerican author and musician
- Dennis LeechBritish racing driver
- Dennis LeeflangDutch rock drummer and producer
- Dennis LeesBritish economist
- Dennis LehAmerican politician
- Dennis LehaneAmerican novelist (born 1965)
- Dennis Lehmkuhlresearcher, university teacher
- Dennis Leighfootballer (born 1949)
- Dennis LemanBritish footballer (born 1954)
- Dennis LemkeGerman footballer
- Dennis LemmaAmerican law enforcement officer (born 1971)
- Dennis LennonBritish architect
- Dennis Lensbadminton player
- Dennis LenzAmerican politician
- Dennis Leonardsound editor
- Dennis LeonardAmerican baseball player
- Dennis LestonBritish entomologist (1917-1981)
- Dennis LetnomRecord Producer
- Dennis LettsAmerican educator, actor (1934-2008)
- Dennis Leung Tsz WingHong Kong politician
- Dennis LevineAmerican investor, white-collar criminal
- Dennis LevyAfrican-American community organizer and HIV/AIDS activist
- Dennis LewallynAmerican baseball player
- Dennis LewisWelsh footballer (1925-1996)
- Dennis LewisAmerican writer
- Dennis LewistonBritish cinematographer (1934-2014)
- Dennis LeyckesGerman decathlete
- Dennis LichtDutch athlete
- Dennis LickAmerican football player
- Dennis LiddiardAmerican make-up artist
- Dennis LightfootEnglish cyclist
- Dennis LilleeAustralian cricketer (fast bowler) who played for Australia from 1971-1984
- Dennis LillieAustralian cricketer (leg spin bowler) who played in the Queensland state team 17 times between 1966
- Dennis Limcinema curator and writer
- Dennis Limfilm critic
- Dennis Lim
- Dennis LimSingaporean footballer
- Dennis LindDanish racing driver
- Dennis LindeAmerican singer and songwriter
- Dennis LindleyBritish statistician (1923-2013)
- Dennis LindseyNational Basketball Association executive
- Dennis LindskjoldDanish darts player
- Dennis LinthicumAmerican politician
- Dennis LionDutch football manager
- Dennis LionelBE BTech in Mechanical Engineering from PSG College of Technology, Coimbatore
- Dennis LippertGerman motorcycle driver
- Dennis LippertGerman association football player
- Dennis LipscombAmerican actor (1942-2014)
- Dennis ListNew Zealand writer
- Dennis Listerpolitician in Bermuda
- Dennis LittelDutch windsurfer
- Dennis LittkyAmerican former principal
- Dennis LittlejohnAmerican baseball player
- Dennis LivsonFinnish film and television producer (1946–2013)
- Dennis LiweweZambian Broadcaster (1936-2014)
- Dennis LloydIsraeli singer-songwriter
- Dennis LloydNew Zealand cricketer
- Dennis Lloyd MartinAmerican child who disappeared on June 14, 1969
- Dennis Lloyd, Baron Lloyd of HampsteadBritish author (1915-1992)
- Dennis LoHong Kong molecular biologist, 9th Vice-Chancellor and President of the Chinese University of Hong K
- Dennis Lo Hoi Yeungbusinessperson
- Dennis Lobachice hockey player
- Dennis LocanasB.Sc in Accounting and Banking from University of Nueva Caceres, Manila
- Dennis LockEnglish cricketer (born 1950)
- Dennis LockDanish cyclist, born 2002
- Dennis LocorriereAmerican musician
- Dennis Lodge MartinAustralian Flight Sergeant killed in WW2
- Dennis LonerganAustralian politician (1906-1965)
- Dennis LonghornEnglish footballer (born 1950)
- Dennis LoozeDutch triathlete
- Dennis LotaZambian football player (1973-2014)
- Dennis LotisSouth African-born British singer, actor and entertainer
- Dennis Lotteruniversity teacher, business consultant
- Dennis Louis BrazaMedical Laboratory Science from University of the Immaculate Conception, Davao City
- Dennis LukensAmerican soccer coach (born 1952)
- Dennis Luna AcunaIngenieria electronica in Electronics Engineering from Instituto Tecnologico de , San Jose California
- Dennis LundyAmerican football player
- Dennis Lupuitalian-born Romanian footballer
- Dennis LuxionAmerican musician, pianist and music educator
- Dennis LuytDutch general
- Dennis LyddellEnglish Member of Parliament (c1657-1717)
- Dennis LyngsøDanish designer
- Dennis Lyonsengineer
- Dennis LyxzénSwedish rock musician, singer and songwriter
- Dennis LópezGuatemalan association football player
- Dennis LöfqvistSwedish speedway rider
- Dennis Lütke-Frieassociation football player
- Dennis M PericeBCS in Software Developer from bermen, Frankfurt
- Dennis M. Bartelsscience museum drector
- Dennis M. BushnellNASA scientist
- Dennis M. CavanaughAmerican judge
- Dennis M. Davinpolitician
- Dennis M. Devaneybiologist
- Dennis M. HannoAmerican college president
- Dennis M. HarrisU.S. herpetologist
- Dennis M. HedlundAmerican businessman
- Dennis M. HertelAmerican politician
- Dennis M. JonesAmerican businessman
- Dennis M. Levivision scientist, optometrist
- Dennis M. McCarthyretired United States Marine Corps Lieutenant General; Assistant Secretary of Defense for Reserve Af
- Dennis M. Murphypolitician in Massachusetts, US
- Dennis M. NagyDirector of the Defense Intelligence Agency, 1991
- Dennis M. Nallychairperson PwC International
- Dennis M. O'BrienAmerican politician
- Dennis M. OgawaAmerican academic
- Dennis M. Opreskozoologist
- Dennis M. PerlussPresiding Justice of the California Second District Court of Appeal, Division Seven
- Dennis M. PowersAmerican writer
- Dennis M. RitchieAmerican computer scientist, co-inventor of the Unix operating system and the C programming language
- Dennis M. SargentAmerican illustrator and malacologist
- Dennis MacDonaldAmerican theologian
- Dennis MacKayCanadian politician
- Dennis MackertGerman association football player
- Dennis MackicBsc ME in Diesel Mechanic from University of South Africa, Dubai
- Dennis MackrelAmerican jazz musician
- Dennis MadaloneAmerican actor
- Dennis MaddenWelsh rugby union and rugby league footballer
- Dennis MadsenDanish association football player
- Dennis MaelzerGerman politician
- Dennis MagnussonSwedish screenwriter (born 1968)
- Dennis MaherAmerican artist
- Dennis MahonAmerican right-wing terrorist
- Dennis MahoneyAmerican writer and artist
- Dennis MahonyAmerican politician, writer and newspaper publisher
- Dennis Maier
- Dennis Main Wilsonproducer (1924-1997)
- Dennis MakHong Kong singer
- Dennis Malamatinasbusinessperson
- Dennis Malcolm ReaderBritish comics author
- Dennis MalecCatholic priest
- Dennis MalloneeAmerican writer of comic books (born 1955)
- Dennis MalloyAmerican politician
- Dennis Malone CarterAmerican painter (1827-1881)
- Dennis MaluraGerman footballer
- Dennis MammanaAmerican astronomer
- Dennis ManRomanian association football player
- Dennis MangersAmerican politician
- Dennis ManjunathIndian film director
- Dennis MannionAmerican politician
- Dennis MannionAmerican sports executive
- Dennis MansSurinamese biologist
- Dennis Mansukhlal GokaniBE BTech in Electronics and Tele-Communication Engineering from Nirma University, Ahmedabad
- Dennis ManteitAustralian rugby league footballer
- Dennis MapaFilipino economist and statistician
- Dennis MarcellinoAmerican musician
- Dennis MarineauCanadian bobsledder
- Dennis Marion SchnurrCatholic archbishop (born 1948)
- Dennis Mark SullivanAmerican politician – Minnesota -- "D.M." House 1893-94 (District 28)
- Dennis MarksAmerican screenwriter, producer and voice actor (1932-2006)
- Dennis MarksEnglish music director (1948-2015)
- Dennis Marriottcricketer (1939-2014)
- Dennis MarschallGerman sport cyclist
- Dennis MarschallGerman racing driver
- Dennis MarsdenBritish sociologist
- Dennis MarshNew Zealand singer
- Dennis MarshallCosta Rican footballer (1985-2011)
- Dennis Marshall HerronCosta Rican footballer
- Dennis MartezBTC in ASP development from Osmania College of Business Management, united kingdom
- Dennis Martinassociation football player
- Dennis MartinGerman composer, born 1974
- Dennis MarukCanadian ice hockey player
- Dennis Marvin HamCanadian politician
- Dennis MaryBE BTech in Electronics and Computer Engineering from S K P Engineering College, Tiruvannamalai
- Dennis Masika MulongoKenyan athletics competitor (born 2000)
- Dennis MasinaFootballer
- Dennis Mason
- Dennis MastGerman footballer
- Dennis MathewB.Com in Banking and Insurance from Christ University, Bangalore
- Dennis MathiasenDanish handball player
- Dennis MatkoskyAmerican songwriter
- Dennis MatthewsAustralian rules footballer
- Dennis MatthewsNew Zealand cricketer
- Dennis MatthiesAmerican self-help writer
- Dennis McBrideAmerican mayor
- Dennis McCannAmerican theologian
- Dennis McCannBritish boxer
- Dennis McCarthyAmerican composer of television and film scores
- Dennis McCarthyAmerican politician (1814-1886)
- Dennis McCarthyBritish radio presenter (1933-1996)
- Dennis McCarthyAmerican scientist
- Dennis McCauleyAmerican ice hockey player
- Dennis McComakAmerican archer
- Dennis McCordCanadian ice hockey player
- Dennis McCortAmerican novelist and translator
- Dennis McCoyAmerican alpine skier
- Dennis McCoyAmerican bicycle motocross rider
- Dennis McCullochAmerican football coach (born c. 1964)
- Dennis McDermottCanadian diplomat (1922-2003)
- Dennis McDonaldAmerican politician
- Dennis McDougalAmerican journalist
- Dennis McEldowneyNew Zealand writer and editor
- Dennis McFarlandAmerican writer
- Dennis McGeeAmerican musician (1893-1989)
- Dennis McGraneOlympic ski jumper
- Dennis McGrathAustralian rules footballer (1946-2004)
- Dennis McGuireAustralian canoeist
- Dennis McGuire
- Dennis McKennaAmerican ethnopharmacologist and author
- Dennis McKinleyAmerican football fullback
- Dennis McKinneyAmerican politician
- Dennis McKinnonAmerican football player
- Dennis McKinseyAmerican communist
- Dennis McKnightAmerican football player
- Dennis McLaughlinacademic
- Dennis McNamaraFootballer (born 1935)
- Dennis McNeilAmerican opera singer
- Dennis McNerneyAmerican politician
- Dennis MeadowsJamaican politician
- Dennis MeadowsAmerican scientist and Emeritus Professor of Systems Management, widely known as a coauthor of The L
- Dennis MehtaBE BTech in Electronics and Computer Engineering from University Institute of En, Chandigarh
- Dennis Meierscientist
- Dennis MelanderSwedish footballer
- Dennis Melitante Millano1st in nanajs from university of eastern philippines, Victoria
- Dennis MellandAmerican male curler
- Dennis MenaceMBA in Mass Communication And Media from Symbiosis Institute of Mass Communicati, Pune
- Dennis MenciaHonduran actor and model
- Dennis MendiolaAmerican businessman
- Dennis MendykAmerican football and baseball player
- Dennis MephamAmerican soccer player (born 1958)
- Dennis MercadoBS ECE in Test Development and Measurement from Mapua University, Bacoor Cavite
- Dennis MeredithAustralian field hockey player
- Dennis MerzelAmerican Buddhist writer
- Dennis MeyerGerman ice hockey player (1977-2022)
- Dennis MeyerPlayer of American and Canadian football
- Dennis MichaelBE BTech in Mechanical Engineering from College of Engineering Munnar, Alappuzha
- Dennis Michael LynchAmerican entrepreneur, documentary film maker, and conservative commentator
- Dennis Michael Sendall
- Dennis Michael SullivanAmerican electrical engineer
- Dennis MichieUnited States Army officer, college football coach.
- Dennis MikaAmerican football player
- Dennis Miles Cavanaugh
- Dennis MillerAustralian actor
- Dennis Millerice hockey player
- Dennis MillerNew Zealand Paralympian
- Dennis MillerAmerican ice hockey coach
- Dennis MillerAmerican stand-up comedian, television host, and actor
- Dennis MillerAmerican football coach
- Dennis MillerAmerican politician
- Dennis Miller BunkerAmerican artist (1861-1890)
- Dennis MilliganAmerican politician
- Dennis MillsCanadian politician
- Dennis MilneScottish footballer (born 1946)
- Dennis Miloseskitech designer and entrepreneur
- Dennis MiltonAmerican boxer
- Dennis MimmAssociation footballer
- Dennis MimsTurkish-American basketball player (born 1980)
- Dennis MirandaFilipino basketball player
- Dennis MitchellBritish military commander
- Dennis Mitchelldentist
- Dennis MitchellAmerican track and field athlete, Olympic gold medalist
- Dennis MitcheltreeAmerican composer
- Dennis MizziMaltese footballer
- Dennis MochanFootballer (born 1935)
- Dennis MoellerAmerican baseball player born 1967
- Dennis Moermanassociation football coach
- Dennis Mogensenreferee
- Dennis MojenGerman actor
- Dennis MojicaAmerican firefighter (FDNY), first responder and victims of the September 11 attacks
- Dennis Mokua OnsomuKenyan athlete
- Dennis MolletDutch taekwondo practitioner
- Dennis Momotaropolitician
- Dennis MoncyBE BTech in Computer Science from Rajagiri School of Engineering and Technology, Kochi
- Dennis MontaliAmerican judge (1940-)
- Dennis Montgomery IIIAmerican musician
- Dennis MooreAmerican actor (1908-1964)
- Dennis MooreAmerican politician (1945–2021)
- Dennis Moorkenskarateka
- Dennis MoormanAmerican jazz pianist
- Dennis MoranAmerican computer hacker (1982–2013)
- Dennis MoranAustralian rugby league footballer and coach
- Dennis MorganAmerican musician
- Dennis MorganAmerican actor (1908-1994)
- Dennis MorganAmerican football player (1952-2015)
- Dennis Morin(1946-2012)
- Dennis Morongecross-country skier
- Dennis MorrisBritish photographer (born 1953)
- Dennis Morrisplayer of American football
- Dennis MorrisonAmerican football player
- Dennis MortimerEnglish footballer (born 1952)
- Dennis Morton HorneEnglish chess player
- Dennis Mosespolitician from Trinidad and Tobago
- Dennis MosleyAmerican football player (born 1957)
- Dennis MossAmerican politician
- Dennis MountEnglish rower
- Dennis MoyoBCS in Software Development from NUST, Harare
- Dennis MuellerAmerican economist
- Dennis Mugendiin Student from Starehe Boys Centre and School, Meru
- Dennis MugoKenyan actor
- Dennis Muhammad Abdullahassociation football player
- Dennis MuhehiaBsc Biochemistry in Bio Science from Caltech, Service not available
- Dennis MuilenburgAmerican businessman, and former president, chairman, and chief executive officer of The Boeing Comp
- Dennis Mulderbusinessperson
- Dennis MuldooABBF in Accessory Fitter from University of Santo Tomas, Quezon City
- Dennis MunariAustralian rules footballer and coach (1948-2023)
- Dennis MurenAmerican film special effects artist
- Dennis MurilloBrazilian association football player
- Dennis Murimi MuriukiB.Com in Accounts and Finance from Jomo Kenyatta University of Agriculture and T, Mumbai
- Dennis MurphreeAmerican politician (1886-1949)
- Dennis MurphyAmerican equestrian
- Dennis MurphyAmerican writer (1932-2005)
- Dennis MurphyAmerican composer (1934-2010)
- Dennis Murphymotorcyclist and rally navigator
- Dennis MurphyCanadian politician
- Dennis MurphyAmerican journalist
- Dennis MurphyWisconsin politician
- Dennis MurphyUnited States Army Medal of Honor recipient
- Dennis MurphyAmerican sports entrepreneur (born 1926)
- Dennis MurphyFrench ice hockey player
- Dennis MurrayAmerican politician
- Dennis Musembi NdisoKenyan athletics competitor
- Dennis Musgravesbaseball player
- Dennis MustAmerican writer (1934–2024)
- Dennis MödingerGerman association football player
- Dennis Möhringpolitician
- Dennis Møller WolfeNorwegian footballer
- Dennis MüllerGerman model
- Dennis Müllertable tennis player
- Dennis NambudiriMBA with 15+ years experience in Operations & Customer Service, Bangalore
- Dennis NawrockiPolish basketball player (1992-)
- Dennis NearyAmerican politician
- Dennis NedryACAF in Capital Goods Skill Council from Sri Devaraj Urs College of Nursing, Quezon City
- Dennis NehringAmerican politician
- Dennis Neilson-TerryBritish actor and theatre manager (1895–1932)
- Dennis NelsonMBA in Finance from Institute of Management Studies Career and Development Resea, Ahmednagar
- Dennis Nelsonvolleyball player
- Dennis NelsonScottish professional footballer
- Dennis NelsonAmerican football player
- Dennis NeumanDutch baseball player
- Dennis NevilleCo-creator of Hawkman
- Dennis NevoloAmerican tennis player (1989-)
- Dennis NewallScottish football manager
- Dennis NewmanAmerican bodybuilder
- Dennis Ng Kwok Lun
- Dennis Ng'ang'aKenyan footballer
- Dennis NgabiranoUgandan teacher, psychologist and entrepreneur
- Dennis NgangomBE BTech in Civil Engineering from Institute of Technology and Management, Gwalior
- Dennis NgauMalaysian politician
- Dennis NieblasSanish footballer
- Dennis Niehradio personality
- Dennis NielsenAmerican politician
- Dennis NiemeyerGerman rower
- Dennis NikraschAmerican locksmith
- Dennis NilsenScottish serial killer (1945–2018)
- Dennis NilssonSwedish association football player
- Dennis NilssonSwedish darts player
- Dennis NinehamBritish theologian
- Dennis Nixonbanker
- Dennis Nkfrom Andhra Loyola College, New Orleans
- Dennis Nkrumah KorsahGhanaian footballer
- Dennis NobleBritish singer
- Dennis NolanAmerican politician
- Dennis NordströmSwedish ice hockey player
- Dennis NorfleetAmerican football player
- Dennis Normanplayer of American football
- Dennis NorthcuttAll-American college football player, professional football player, wide receiver, punt returner
- Dennis NothaftDiver
- Dennis NovakAustrian tennis player
- Dennis NovikovAmerican tennis player
- Dennis Novyeconomist (University of Warwick; Centre for Economic Policy Research (CEPR); CESifo)
- Dennis NoyesAmerican journalist and motorcycle racer
- Dennis NurkseAmerican poet (born 1949)
- Dennis NuttAmerican basketball player and coach
- Dennis NybackAmerican film archivist
- Dennis NylundFinnish dancer and actor
- Dennis NyquistAmerican electrical engineer
- Dennis NørmarkDanish literary critic
- Dennis O'BrienCanadian ice hockey player
- Dennis O'BrienIrish member of the Garda Síochána (1899-1942)
- Dennis O'BryenIrish playwright and political pamphleteer
- Dennis O'ConnorCanadian judge
- Dennis O'DohertyAmerican veteran and politician (born 1924)
- Dennis O'Donnellfootballer (1880-?)
- Dennis O'DriscollIrish poet, critic (1954–2012)
- Dennis O'FlahertyAmerican screenwriter
- Dennis O'Kane
- Dennis O'KeefeAmerican actor (1908–1968)
- Dennis O'KeefeCanadian politician
- Dennis O'KeeffeBritish social scientist
- Dennis O'KellyIrish breeder of thoroughbred racehorses (1725–1787)
- Dennis O'NeilAmerican comics writer (1939–2020)
- Dennis O'NeillEnglish rugby league footballer
- Dennis O'NeillWelsh opera singer
- Dennis O'NeillAmerican baseball player
- Dennis O'Neill caseBritish abuse victim
- Dennis O'RourkeAustralian filmmaker (1945–2013)
- Dennis O'SullivanAmerican football center
- Dennis O'SullivanAustralian rules footballer (1946-2018)
- Dennis O'Toolebaseball player
- Dennis O. BythewoodU.S. Air Force colonel
- Dennis O. CawthorneAmerican politician
- Dennis O. MabborangPort Coordinator at Agility Global Integrated Logistics (previous), Manila
- Dennis OakesCricketer, footballer (born 1946)
- Dennis OaloKenyan footballer
- Dennis ObengNorwegian association football player
- Dennis OdhiamboKenyan association football player
- Dennis OehlerAmerican Paralympic athlete
- Dennis OkaruNigerian footballer
- Dennis Okotassociation football player
- Dennis OkothKenyan footballer
- Dennis OliEnglish footballer (born 1984)
- Dennis OliechKenyan footballer
- Dennis Olivieriactor
- Dennis Oliynikov
- Dennis Olofssonassociation football player
- Dennis OlsenAustralian actor and singer
- Dennis OlsenNorwegian racing driver
- Dennis OlshoveAmerican politician
- Dennis OlsonCanadian ice hockey player
- Dennis OlssonSwedish association football player (born 1999)
- Dennis OlssonSwedish association football player (born 1994)
- Dennis Ombachirugby union player (1994-)
- Dennis OnkotzAmerican football player (born 1948)
- Dennis OppenheimAmerican artist, sculptor and photographer (1938–2011)
- Dennis OrcolloFilipino pool player
- Dennis OrmeBritish theologian and author
- Dennis OsadebayNigerian politician (1911-1994)