| Orlovsky, Claudia | Claudia Orlovsky (Claudia Orlovsky) | Choreographer | 1998 | 1 | |
| O'Kelly, Geri | Geri O'Kelly (Geri O'Kelly) | Choreographer | 1993 | 1 | |
| Oscar, - | - Oscar (- Oscar) | Choreographer | 2006 | 1 | |
| Owen, Sally | Sally Owen (Sally Owen) | Choreographer | 2010 | 1 | |
| Oehlschläger, Margarethe | Margarethe Oehlschläger (Margarethe Oehlschläger) | Choreographer | 1921 | 1 | |
| Ornelli, Otto | Otto Ornelli (Otto Ornelli) | Choreographer | 1938 | 1 | |
| Ousdal, Bodil | Bodil Ousdal (Bodil Ousdal) | Choreographer | 1985 - 1991 | 6 | |
| Osuldsen, Johan | Johan Osuldsen (Johan Osuldsen) | Choreographer | 1998 - 2000 | 3 | |
| Ogoun, Luboš | Luboš Ogoun | Choreographer | 1986 | 1 | |
| O'Neill, Katherine | Katherine O'Neill | Choreographer | 2004 | 1 | |
| Obradović, Vera | Vera Obradović | Choreographer | 2005 | 1 | |
| Oščepkov, Artur | Artur Oščepkov | Choreographer | 2013 | 1 | |
| O’Rourke, Rylee | Rylee O’Rourke | Assistant Director, Producer | 2020 - 2022 | 2 | |
| Olsoni, Kristin | Kristin Olsoni | Assistant Director | 1991 - 2006 | 2 | |
| Oestereich, Tilman | Tilman Oestereich | Assistant Director | 2013 | 1 | |
| Odağ, Efsane | Efsane Odağ | Assistant Director | 2019 | 1 | |
| Oberhäußer, Frank | Frank Oberhäußer | Assistant Director | 2006 | 1 | |
| Otton, Steve | Steve Otton | Assistant Director | 1984 | 1 | |
| Orlando, Carlo | Carlo Orlando | Assistant Director | 2021 | 1 | |
| O'Malley, Cathleen | Cathleen O'Malley | Assistant Director | 2022 | 1 | |
| Olsen, Ragnar | Ragnar Olsen (Ragnar Olsen) | Adaptation, Translator | 1994 - 2015 | 48 | |
| Osborne, John | John Osborne | Adaptation, Translator | 1972 - 2011 | 8 | |
| Oldenhof, Bouke | Bouke Oldenhof | Adaptation, Translator | 1999 | 2 | |
| Ostermeier, Thomas | Thomas Ostermeier (Thomas Ostermeier) | Adaptation, Director, Translator | 2002 - 2022 | 231 | |
| Oikonomopoulou, Pepi | Pepi Oikonomopoulou (Pepi Oikonomopoulou) | Adaptation, Director | 2006 | 2 | |
| Oschlag, Jakob | Jakob Oschlag | Adaptation, Director | 1977 - 2001 | 8 | |
| Orsmaa, Taisto-Bertil | Taisto-Bertil Orsmaa | Adaptation, Director | 1983 - 1996 | 3 | |
| Olwagen, Christiaan | Christiaan Olwagen | Adaptation, Director | 2015 - 2016 | 4 | |
| O'Reilly, Vincent, A. | Vincent A. O'Reilly | Adaptation, Director | 2012 | 2 | |
| Ochoa, José | José Ochoa | Adaptation, Director | 1974 - 1975 | 10 | |
| Orlikowsky, Wazlaw | Wazlaw Orlikowsky | Adaptation, Choreographer, Director | 1956 | 3 | |
| Ollén, Gunnar | Gunnar Ollén (Gunnar Ollén) | Adaptation | 1947 - 2005 | 2 | |
| O’Rowe, Mark | Mark O’Rowe | Adaptation | 2015 | 1 | |
| Osztovits, Cecilia | Cecilia Osztovits | Adaptation | 2002 | 1 | |
| Oxenvad, Ann Sofie | Ann Sofie Oxenvad | Adaptation | 2003 | 1 | |
| Oakes, Robert | Robert Oakes | Adaptation | 2009 | 1 | |
| O’Hearn, Nigel | Nigel O’Hearn | Adaptation | 2011 - 2016 | 4 | |
| O'Rowe, Mark | Mark O'Rowe | Adaptation | 2016 | 1 | |
| O'Horn, Nigel | Nigel O'Horn | Adaptation | 2017 | 1 | |
| Otten, Joe | Joe Otten | Adaptation | 2018 | 1 | |
| Ocano, Armando | Armando Ocano | Adaptation | 1975 - 1980 | 5 | |
| Orak, Aydin | Aydin Orak (Aydin Orak) | Actor, Translator | 2010 | 16 | 2 |
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