| Tapio, Jorma | Jorma Tapio | Composer | 1997 - 1998 | 1 | |
| Terzakis, Dimitris | Dimitris Terzakis | Composer | 1964 | 2 | |
| Theater, Dream | Dream Theater | Composer | 2002 | 1 | |
| Tazartès, Ghédalia | Ghédalia Tazartès | Composer | 2003 | 6 | |
| Tute, John | John Tute | Composer | 2004 | 1 | |
| Trafton, Joseph L. | Joseph L. Trafton | Composer | 2005 | 1 | |
| Topolski, Krzysztof | Krzysztof Topolski | Composer | 2011 | 1 | |
| Trivedi, Rohan | Rohan Trivedi | Composer | 2006 | 1 | |
| Tripathy, Chittaranjan | Chittaranjan Tripathy | Composer | 2006 - 2007 | 1 | |
| Tadini, Michele | Michele Tadini | Composer | 2016 - 2017 | 3 | |
| Tanakawa, Hiroko | Hiroko Tanakawa | Composer | 2010 | 1 | |
| Turnage, Mark-Anthony | Mark-Anthony Turnage | Composer | 2011 | 2 | |
| Tritschler, Marc | Marc Tritschler | Composer | 2016 | 1 | |
| Tettamanti, Hr. | Hr. Tettamanti | Composer | 1954 | 1 | |
| Tutul, Mosharraf Hossain | Mosharraf Hossain Tutul | Composer | 1999 | 2 | |
| Tabakov, Krum | Krum Tabakov | Composer | 1971 | 1 | |
| Tjemsland, Tone | Tone Tjemsland | Composer | 1985 | 1 | |
| Tombre, Jon | Jon Tombre | Composer | 2019 | 1 | |
| Tudor, Goran | Goran Tudor | Composer | 2013 | 1 | |
| Tauský, Vilém | Vilém Tauský | Composer, Conductor | 1933 | 2 | |
| Toijanniemi, Tuukka | Tuukka Toijanniemi | Composer, Designer | 2004 | 2 | |
| Tomba, Heisnam | Heisnam Tomba | Composer, Designer, Director | 2012 | 3 | |
| Taliotis, Neofytos | Neofytos Taliotis | Composer, Director | 2004 | 2 | |
| Tsagkaris, Giorgos | Giorgos Tsagkaris | Composer, Musical Director | 1980 - 1985 | 13 | |
| Tarkmann, Andreas N. | Andreas N. Tarkmann | Composer, Musical Director | 1994 | 2 | |
| Tveitt, Geirr | Geirr Tveitt | Composer, Musician | 1988 - 2013 | 4 | |
| Tafjord, Hild Sofie, | Hild Sofie Tafjord | Composer, Sound Designer | 2008 | 10 | |
| Tønnesen, Terje, | Terje Tønnesen | Composer, Sound Designer | 2012 - 2013 | 138 | |
| Tushar, Ahsan Reza | Ahsan Reza Tushar | Composer, Sound Designer | 2004 - 2005 | 2 | |
| Tutul, Mosarraf Hossain | Mosarraf Hossain Tutul | Composer, Sound Designer | 2004 - 2005 | 2 | |
| Triantafillou, Brando | Brando Triantafillou | Composer, Sound Designer | 2018 | 2 | |
| Tobiasj, E., Semjononvitsj | E. Semjononvitsj Tobiasj | Conductor | 1997 | 1 | |
| Tiboris, Peter | Peter Tiboris | Conductor | 2007 | 1 | |
| Thomas, Michael, Tilson | Michael Tilson Thomas | Conductor | 2013 | 1 | |
| Tennstedt, Klaus | Klaus Tennstedt | Conductor | 1956 | 1 | |
| Tass, Erik | Erik Tass | Conductor | 1956 | 1 | |
| Tango, Egisto | Egisto Tango | Conductor | 1933 - 1934 | 1 | |
| Trendler, Robert | Robert Trendler | Conductor | 1943 | 1 | |
| Török, Emil | Emil Török | Conductor | 1925 - 1927 | 2 | |
| Török, Rezső | Rezső Török | Conductor | 1930 | 1 | |
| Todorov, Kosta | Kosta Todorov | Conductor | 1923 - 1930 | 2 | |
| Thoroddsen, Emil | Emil Thoroddsen | Conductor | 1928 | 1 | |
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