O Khazars

Ober, Ken
Ochs, Adolph
Ochs, Phil
Odets, Clifford
Offenbach, Jacques
Okonedo, Sophie
Olah, George
Olere, David
Olin, Ken
Olshansky, Igor
Olszewski, J. (J. Specht, Soviet death camp authority)
Ophuls, Max
Oppen, George
Oppenheimer, Alan
Oppenheimer, Franz
Oppenheimer, Harry
Oppenheimer, J. Robert
Oppenheimer, Robert
Orbach, Jerry
Ordroneaux, John
Orlev, Uri
Orlov, Aleksandr (Leiba Lazarevich Feldbin, Soviet secret police, supervised killings of Catholic priests and peasants in Spanish Civil War)
Ormandy, Eugene
Ornstein, Leo
Ornstein, Norman
Osborne, Dave
Osborne, Super Dave
Osbourne, Sharon
Osheroff, Douglas D.
Oskar, Lee (WAR)
Ostin, Mo
Ostriker, Alicia
Ovadia, Moni
Ovseenko, Vladimir Antonov
Ovshinsky, Stanford
Oz, Amos
Oz, Frank
Ozick, Cynthia