Celebrities age 51
51

Dermot O'Leary

television  
51

Daren O'Leary

player  
51

Ciarán O'Leary

player  
51

Patrik Oksanen

journalist  
51

Gašper Okorn

coach  
51

Ivan O'Konnel-Bronin

footballer  
51

Lisa O'Keefe

practitioner  
51

Ole Öhman

artist  
51

Rob O'Hara

author  
51

Patrick Ogwang

Professional  
51

Cem Öğretir

TV presenter  
51

Stuart O'Grady

cyclist  
51

Konstantin Ognjanović

footballer  
51

Dejan Ognjanović (author)

Writer  
51

Sarah O'Flaherty

Television  
51

Abiola Odumosu

player  
51

Mick O'Dowd

footballer  
51

Matt O'Dowd (astrophysicist)

 
51

Shannon O'Donnell (meteorologist)

news anchor  
51

Marty O'Donnell (boxer)

boxer  
51

Jennifer O'Donnell

archer  
51

Shayne O'Connor

cricketer  
51

Shane O'Connor (skier)

skier  
51

Jennifer O'Connor (musician)

artist  
51

George O'Connor (comics)

 
51

Christian O'Connell

television  
51

Sinéad O'Carroll

 
51

Margaret O'Brien (politician)

politician  
51

Denny O'Brien

 
51

Corey O'Brien

politician