Celebrities age 66
66

Brendan O'Leary

 
66

Kjartan Ólafsson (composer)

composer  
66

Mike O'Koren

 
66

Álvaro Ojeda

Writer  
66

Abdullah Oğuz

film  
66

Tellef Øgrim

artist  
66

Tony O'Gorman

politician  
66

John Ogilvie (South African cricketer)

cricketer  
66

Gerard O'Donovan

Coach  
66

Kyran O'Donnell

politician  
66

Peter O'Doherty

artist  
66

Jón Oddsson

athlete  
66

Tetsurō Oda

artist  
66

Robin O'Connor

sailor  
66

Karen O'Connor

equestrian  
66

Jack O'Connor (pitcher)

player  
66

Greg O'Connor (politician)

politician  
66

Don O'Connor

cricketer  
66

Damien O'Connor

politician  
66

Barbara O'Connor (author)

Author  
66

Maura O'Connell

artist  
66

Les O'Connell

rower  
66

Sergei Obukhov

politician  
66

Pete O'Brien (first baseman)

player  
66

Jean O'Brien

historian  
66

Denis O'Brien

Chairman  
66

Francisco Javier Obregón Espinoza

politician  
66

Thomas Öberg (figure skater)

skater  
66

Paul O'Berg

footballer  
66

Eje Öberg

sailor