| Tartaix, Raoul | Raoul Tartaix | Lighting Designer | 1976 | 1 | |
| Tohyama, Shizuo | Shizuo Tohyama | Lighting Designer | 1923 | 1 | |
| Tipton, Jennifer | Jennifer Tipton | Lighting Designer | 1983 - 2009 | 7 | |
| Torres, Santos | Santos Torres | Lighting Designer | 1976 | 1 | |
| Trautvetter, Dieter | Dieter Trautvetter | Lighting Designer | 1986 | 1 | |
| Tondellier, Liliane | Liliane Tondellier | Lighting Designer | 1993 - 2004 | 15 | |
| Truhlar, Robert | Robert Truhlar | Lighting Designer | 1950 | 1 | |
| Tindell, Bo | Bo Tindell | Lighting Designer | 2014 | 1 | |
| Thies, Howard | Howard Thies | Lighting Designer | 1992 | 1 | |
| Thomas, Clive | Clive Thomas | Lighting Designer | 1987 - 1993 | 2 | |
| Trottier, Patrice | Patrice Trottier | Lighting Designer | 1994 | 5 | |
| Tofield, Barry | Barry Tofield | Lighting Designer | 1980 | 1 | |
| Travaglia, Andrea | Andrea Travaglia | Lighting Designer | 1994 | 2 | |
| Tange, Michael | Michael Tange | Lighting Designer | 1995 | 1 | |
| Tyrén, Ingemar | Ingemar Tyrén | Lighting Designer | 1991 | 21 | |
| Tanaka, Kikuo | Kikuo Tanaka | Lighting Designer | 1997 - 2006 | 5 | |
| Thomson, Robert | Robert Thomson | Lighting Designer | 2002 - 2012 | 5 | |
| Tzoras, Spyros | Spyros Tzoras | Lighting Designer | 2002 - 2003 | 4 | |
| Taylor, Mike | Mike Taylor | Lighting Designer | 1989 | 1 | |
| Tarantino, Mary | Mary Tarantino | Lighting Designer | 2001 | 1 | |
| Truebridge, Marc | Marc Truebridge | Lighting Designer | 2003 | 17 | |
| Terry, Matt | Matt Terry | Lighting Designer | 2004 | 1 | |
| Thomson Garey, Charles | Charles Thomson Garey | Lighting Designer | 2004 | 1 | |
| Theng, Hien-Chi | Hien-Chi Theng | Lighting Designer | 2005 - 2006 | 2 | |
| Tiikkainen, Minna | Minna Tiikkainen | Lighting Designer | 2001 | 1 | |
| Taylor, Jason | Jason Taylor | Lighting Designer | 2001 - 2015 | 2 | |
| Tallen, Deborah | Deborah Tallen | Lighting Designer | 2006 | 1 | |
| Treviño, Christopher | Christopher Treviño | Lighting Designer | 2006 | 1 | |
| Takebayashi, Isao | Isao Takebayashi | Lighting Designer | 2006 | 3 | |
| Tianfu, Yi | Yi Tianfu | Lighting Designer | 2006 | 1 | |
| Taliotis, Leandros | Leandros Taliotis | Lighting Designer | 2006 | 1 | |
| Tangen, Frank | Frank Tangen | Lighting Designer | 1991 - 2006 | 2 | |
| Takei, Takashi | Takashi Takei | Lighting Designer | 2006 - 2010 | 6 | |
| Ter Meulen, Annette | Annette Ter Meulen | Lighting Designer | 2008 - 2015 | 6 | |
| Tatakos, Kostas | Kostas Tatakos | Lighting Designer | 2009 - 2012 | 18 | |
| Tarahhomi, Amir | Amir Tarahhomi | Lighting Designer | 2009 | 1 | |
| Tsioumis, Dimitris | Dimitris Tsioumis | Lighting Designer | 2010 | 1 | |
| Trummer, Thomas | Thomas Trummer | Lighting Designer | 2011 | 1 | |
| Tucker, Leonard | Leonard Tucker | Lighting Designer | 1964 - 1965 | 5 | |
| Tattersall, Neil | Neil Tattersall | Lighting Designer | 2012 | 1 | |
| Thompson, Bill | Bill Thompson | Lighting Designer | 1964 | 1 | |
| Tellefsen, Agnethe | Agnethe Tellefsen | Lighting Designer | 2016 | 1 | |
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