★   O'Jays  
★   O.J. Anderson  
★   O.J. Mayo   Basketball Player; Memphis Grizzlies of the NBA
★   Oak Ridge Boys  
★   Oakland Athletics   Professional Baseball Team
★   Oakland Raiders (stadium)  
★   Oasis   Music Group
★   Octavio Paz  
★   October Road Cast   Television Show on ABC
★   Oddibe McDowell   Olympic Baseball Player
★   Oded Fehr   Actor
★   Odetta  
★   Odette Yustman   Actress, 'October Road'
★   OJ Simpson   Former pro NFL football player
★   Ok Go   Band
★   Oklahoma Redhawks   Minor League Baseball team
★   Oksana Baiul   Olympic Figure Skater, Movie Based on Her Career
★   Olaf Tufte   Olympic Rower
★   Olden Polynice   NBA basketball player
★   Oleda Baker  
★   Oleg Cassini  
★   Olesya Rulin   Actress, 'High School Musical 1 & 2'
★   Oleta Adams   Singer
★   Olga Korbut   Olympic Gymnast
★   Olga Schoberova   Actress
★   Olive McFarland   Actress: The Frightened City
★   Oliver Clark  
★   Oliver James   Actor
★   Oliver Kahn   German football (soccer) player
★   Oliver North  
★   Oliver Phelps   Actor, Harry Potter
★   Oliver Platt   Actor
★   Oliver Steeds   Presenter: Travel Channel's Mark & Olly: Living with the Tri...
★   Oliver Stone  
★   Olivia Adriaco   TV Presenter
★   Olivia d'Abo   Actress
★   Olivia de Havilland   Actress
★   Olivia Hallinan   Actress: Sugar Rush
★   Olivia Hussey  
★   Olivia Munn   Actress, Model, TV Presenter
★   Olivia Newton-John   Pop Singer, Songwriter, Actress
★   Olivia Thirlby   Actress: Juno
★   Olivia Wilde   Actress
★   Olivia Williams   Actress, 'Peter Pan', and 'Valiant'
★   Olivier Gruner   Actor, BodyBuilder
★   Olivier Martinez   actor
★   Olympia Dukakis   Actress
★   Omaha Royals   Minor League Baseball team
★   Omar Epps   Actor: Higher Learning, Love and Basketball
★   Omar Sharif  
★   Omar Vizquel   Baseball Player
★   Omari Hardwick   Actor: The Guardian
★   Omarion Grandberry   Singer, Actor
★   Omi Vaidya   Actor
★   Omid Djalili   Actor: The Mummy
★   Omri Katz   Actor
★   Ona Grauer   Actress
★   Ona Zee  
★   One Chance   R&B Vocal Group
★   One Life To Live   Soap Opera on ABC
★   One Tree Hill Cast   Drama TV Show
★   Oprah Winfrey   Talk Show Host
★   Oral Roberts  
★   Oralee Wachter   Author
★   Orange County Choppers   TV Show
★   Orel Hershiser   Former Baseball Player
★   Orfeh   Singing/ Actress
★   Original Spoiler, The  
★   Orla Brady   Actress: A Love Divided
★   Orlaith McAllister   Big Brother
★   Orlando Bloom   Actor, 'Pirates of the Caribbean: The Curse of the Black Pea...
★   Orlando Brown   Actor
★   Orlando Cabrera   Chicago Whitesox Baseball Player: Shortstop
★   Orlando Cepeda  
★   Orlando Hernandez   Major League Baseball Player
★   Orlando Jones  
★   Orlando Magic  
★   Orlando Scandrick   NFL Football Player: Dallas Cowboys
★   ornella muti   Actress
★   Ornette Coleman   Jazz Musician
★   Orrin Hatch  
★   Orson Bean  
★   Oscar De La Hoya   Boxer
★   Oscar Niemeyer   Brazilian Architect (United Nations headquarters in New York...
★   Oscar Nunez   Actor, 'The Office'
★   Oscar Robertson   Former Basketball Player
★   oshiomogho atogwe   football player
★   Osi Umenyiora   Football Player
★   Osmonds, The  
★   Ossie Davis  
★   Ossie Davis and Ms.Ruby Dee  
★   Ossie Davis and Ruby Dee  
★   Otep Shamaya   Singer, Songwriter: Band Otep
★   Otis Chandler  
★   Otis Day and the Knights  
★   Otis Nixon   MLB Player
★   Ottawa Lynx   Minor League Baseball team
★   Ottawa Senators  
★   Otto Graham  
★   Our Lady Peace  
★   Outkast   Hip Hop Group
★   Outworld   Band
★   Owain Yeoman   Actor: Troy
★   Owais Shah   English Cricketer
★   Owen Wilson   Actor
★   Owiso Odera   Actor
★   Ozric tentacles   Instrumental Band
★   Ozzie Guillen   Shortstop / Manager
★   Ozzie Newsome   Retired NFL player
★   Ozzie Smith   MLB Hall of Famer
★   Ozzy Osborne   Musician
★   Ozzy Osbourne   'The Osbournes'