| Name | Functions  | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Richard Taylor | Composer | 2005 - 2006 | 3 | 1 | ||
| Christoph Theusner | Composer | 1990 - 1992 | 2 | |||
| Siegfried Tiefensee | Composer | 1969 | 1 | |||
| Pyotr Ilyich Tschaikowsky | Composer | 1909 - 2022 | 10 | |||
| Mārtiņs Tauriņs | Composer | 2003 | 1 | |||
| Tato Taborda | Composer | 2001 - 2002 | 2 | |||
| Claudio Taddei | Composer | 2011 | 1 | |||
| Harmonia Team | Composer | 1990 | 1 | |||
| Geraldo Torres | Composer | 1971 - 1973 | 5 | |||
| Matthias Trippner | Composer | 2004 - 2006 | 4 | |||
| - Thrane | Composer | 1901 | 1 | |||
| E. Y. Tanner | Composer | 1905 | 1 | |||
| Samuel Coleridge Taylor | Composer | 1909 | 1 | |||
| Einar Thorbjørnsen | Composer | 1998 - 2004 | 2 | |||
| Reinhard Thomsen | Composer | 1973 | 1 | |||
| Aris Tasoulis | Composer | 1990 - 1991 | 2 | |||
| Zafer Tawil | Composer | 2013 | 1 | |||
| Themis Teloglou | Composer | 2013 | 2 | |||
| Jürgen Tamchina | Composer | 1985 | 1 | |||
| Livio Tragtemberg | Composer | 1985 | 1 | |||
| Olav Anton Thommessen | Composer | 1987 - 1989 | 2 | 1 | ||
| DJ Tr!p | Composer | 2008 - 2013 | 2 | |||
| Dimitris Themelis | Composer | 1984 | 1 | |||
| Daniel Teruggi | Composer | 1989 | 1 | |||
| Paolo Terni | Composer | 1990 - 1996 | 5 | |||
| Bill Thompson | Composer | 1991 | 1 | |||
| Georg Philipp Telemann | Composer | 1993 | 1 | |||
| Wagner Tiso | Composer | 1994 | 1 | |||
| Filip Topol | Composer | 1995 | 1 | |||
| Olivier Thomas | Composer | 1995 - 1996 | 4 | |||
| Jorma Tapio | Composer | 1997 | 1 | |||
| Dimitris Terzakis | Composer | 1964 - 1965 | 2 | |||
| Dream Theater | Composer | 2002 | 1 | |||
| Ghédalia Tazartès | Composer | 2003 | 6 | |||
| John Tute | Composer | 2004 | 1 | |||
| Joseph L. Trafton | Composer | 2005 | 1 | |||
| Krzysztof Topolski | Composer | 2011 | 1 | |||
| Rohan Trivedi | Composer | 2006 | 1 | |||
| Chittaranjan Tripathy | Composer | 2006 | 1 | |||
| Michele Tadini | Composer | 2016 - 2017 | 3 | |||
| Hiroko Tanakawa | Composer | 2010 | 1 | |||
| Mark-Anthony Turnage | Composer | 2011 - 2014 | 2 | 1 | ||