Celebrities born in 1951
73

Jim O'Malley

player  
72

Jack O'Malley (Illinois politician)

politician  
55

Glyn O'Malley

playwright  
73

Ragnar Sør Olsen

singer  
73

Audun Ove Olsen

rider  
72

Nuala O'Loan, Baroness O'Loan

 
73

Declan O'Loan

politician  
73

Günter Ollenschläger

 
73

Luis Oliva (Puerto Rican actor)

actor  
73

Wayne Olhoft

 
72

Kathryn Olesko

historian  
73

Marek Olędzki

 
73

Dianne P. O'Leary

mathematician  
42

Bob O'Leary

player  
72

António Ole

artist  
73

Kofi Okyir

athlete  
65

Issifou Okoulou-Kantchati

politician  
69

Martin Aristide Okouda

politician  
73

Oshiotse Andrew Okwilagwe

professor  
73

John O'Keeffe (Gaelic footballer)

footballer  
73

Paul O'Keefe

actor  
73

Yū Okazaki

manga artist  
73

Santiago Ojeda (footballer)

footballer  
72

Bård Øistensen

civil servant  
73

Bruno K. Öijer

poet  
70

Gavan O'Herlihy

actor  
72

Vincent P. O'Hara

 
73

Jane O'Hara

author  
73

Charlotte O'Hara

politician  
73

Bronagh O'Hanlon