Personen
- O'Brien, Tim (1 Medium)
- O'Neill, Eugene (1 Medium)
- Oberlin, Johann Friedrich (1 Medium)
- Obermann, Heiko A. (1 Medium)
- Öhlschläger, Günther (1 Medium)
- Oelker, Petra (1 Medium)
- Oertel, Robert (1 Medium)
- Oesterhelt, Anja (1 Medium)
- Oestreich, Gerhard (1 Medium)
- Oldenburg, fred (1 Medium)
- Olsson, Michael (1 Medium)
- Oltmer, Jochen (1 Medium)
- Olzog, Günter (1 Medium)
- Onetti, Juan Carlos (1 Medium)
- Ooyen, Robert Christian van (1 Medium)
- Opaschowski, Horst W. (1 Medium)
- Opatoshu, Joseph (1 Medium)
- Opitz, Peter J. (1 Medium)
- Orlandi, Enzo (2 Medien)
- Orlandini, Marisa Volpi (1 Medium)
- Ortag, Peter (1 Medium)
- Orwell, George (2 Medien)
- Oschmann, Dirk (1 Medium)
- Oser, Fritz (2 Medien)
- Osterwald, Grete (1 Medium)
- Oswald Ellen (1 Medium)
- Ott, Norbert H. (1 Medium)
- Otto, Eckart (1 Medium)
- Otto, Kim (1 Medium)
- Ovidius Naso, Publius (1 Medium)
- Oz, Amos (1 Medium)