| Oshima, Akiko | Akiko Oshima | Dramaturg | 2009 | 1 | |
| Ono, Hacchaku | Hacchaku Ono | Dramaturg | 2009 | 3 | |
| Obst, Angela | Angela Obst | Dramaturg | 2012 - 2014 | 2 | |
| Ortmann, Reinar | Reinar Ortmann | Dramaturg | 2016 - 2017 | 1 | |
| Okamura, Akemi | Akemi Okamura | Dramaturg | 2013 | 1 | |
| Ortmann, Lucie | Lucie Ortmann | Dramaturg | 2017 | 1 | |
| Oppermann, Peter | Peter Oppermann | Dramaturg | 2000 | 1 | |
| Ohmen, Kristina | Kristina Ohmen | Dramaturg | 2018 | 1 | |
| Ohlsson, Monica, | Monica Ohlsson | Dramaturg, Translator | 2005 - 2009 | 8 | |
| Okada, Inosuke | Inosuke Okada | Lighting Designer | 1934 | 1 | |
| Ogawa, Noboru | Noboru Ogawa | Lighting Designer | 1946 | 1 | |
| Ottesen, Roald | Roald Ottesen | Lighting Designer | 1972 | 1 | |
| Ogawa, Toshiro | Toshiro Ogawa | Lighting Designer | 1964 | 2 | |
| Orban, Peter, | Peter Orban | Lighting Designer | 2011 | 8 | |
| Ormerod, Ben | Ben Ormerod | Lighting Designer | 1994 - 2007 | 41 | |
| Olerud, Ingeborg S., | Ingeborg S. Olerud (Ingeborg S. Olerud) | Lighting Designer | 2008 - 2010 | 4 | |
| Orstad, Kjell | Kjell Orstad | Lighting Designer | 1971 | 1 | |
| Ottesen, Oscar | Oscar Ottesen | Lighting Designer | 1954 | 4 | |
| Olsen, Arne, H. | Arne H. Olsen | Lighting Designer | 1971 | 5 | |
| Ogawa, Ikuo | Ikuo Ogawa | Lighting Designer | 2008 | 1 | |
| Oshry, Joseph, P. | Joseph P. Oshry | Lighting Designer | 2012 | 1 | |
| Olsen , Trygve | Trygve Olsen | Lighting Designer | 1985 | 3 | |
| Okajima, Yuki | Yuki Okajima | Lighting Designer | 2014 | 1 | |
| Ornbo, Robert | Robert Ornbo | Lighting Designer | 1978 | 2 | |
| Olivere, Marc | Marc Olivere | Lighting Designer | 1992 | 1 | |
| Ohsawa, Kaoru | Kaoru Ohsawa | Lighting Designer | 1991 | 1 | |
| O'Donoghue, Brian | Brian O'Donoghue | Lighting Designer | 1980 | 1 | |
| Orgal, Yehiel | Yehiel Orgal | Lighting Designer | 1995 | 1 | |
| Ogawa, Hisao | Hisao Ogawa | Lighting Designer | 1967 | 1 | |
| Offord, John | John Offord | Lighting Designer | 2002 | 1 | |
| Ostrowski, Andrew David | Andrew David Ostrowski | Lighting Designer | 2005 - 2007 | 2 | |
| O´Connell, Dyan | Dyan O´Connell | Lighting Designer | 2005 | 1 | |
| Otani, Hayato | Hayato Otani | Lighting Designer | 2006 | 2 | |
| Ono Seo, Rie | Rie Ono Seo | Lighting Designer | 2009 - 2010 | 2 | |
| Ollinger, Eduard | Eduard Ollinger | Lighting Designer | 2010 - 2012 | 5 | |
| Olson, Karin | Karin Olson | Lighting Designer | 2010 | 1 | |
| Okafor, Stella | Stella Okafor | Lighting Designer | 2009 | 1 | |
| Oblokar , Samo | Samo Oblokar | Lighting Designer | 2010 - 2012 | 3 | |
| O'Sullivan, Pat | Pat O'Sullivan | Lighting Designer | 1964 | 1 | |
| Ostrižnaja, O. | O. Ostrižnaja | Lighting Designer | 1999 | 2 | |
| O´Donnell, Trisha | Trisha O´Donnell | Lighting Designer | 1981 | 1 | |
| Otto, Driscoll | Driscoll Otto | Lighting Designer | 2018 | 1 | |
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