Celebridades de 51 años
51

Jason O'Mara

actor  
51

Gwen O'Mahony

politician  
51

Darragh O'Mahony

player  
51

Tom Oliverson

politician  
51

Eduardo Oliveira (footballer, born 1972)

footballer  
51

Mykola Oleschuk

 
51

Cezary Olejniczak

politician  
51

Peter O'Leary (referee)

 
51

Jan Ołdakowski

politician  
51

Daniel O'Keeffe (swimmer)

swimmer  
51

Gökhan Okan

physician  
51

Leszek Ojrzyński

footballer  
51

Ōikari Tsuyoshi

 
51

Jörgen Ohlsson

footballer  
51

Nicholas O'Hare

swimmer  
51

Davy O'Hare

footballer  
51

Jason O'Halloran

player  
51

Emeka Oguzie

researcher  
51

Dave O'Gorman

footballer  
51

Ajah Ogechukwu

footballer  
51

Raisa O'Farrill Bolanos

player  
51

Maggie O'Farrell

novelist  
51

Matt O'Dwyer

player  
51

Matt O'Donnell (journalist)

 
51

Jon Eirik Ødegaard

footballer  
51

Robbie O'Davis

footballer  
51

Isaac Ashai Odamtten

politician  
51

Dion O'Cuinneagain

footballer  
51

Jamesie O'Connor

teacher  
51

Adrian O'Connor

swimmer