| Judson, Arnold | Arnold Judson | Composer | 1964 | 1 | |
| Joseph, Cuinn | Cuinn Joseph | Composer | 2019 | 1 | |
| Janssønn, Jakob | Jakob Janssønn | Composer | 2019 | 1 | |
| Janette Walen, Niels | Niels Janette Walen | Composer | 1976 | 1 | |
| Joseph, Kathryn | Kathryn Joseph | Composer | 2021 | 5 | |
| Johnson, Laurie | Laurie Johnson | Composer | 1975 | 1 | |
| Jocov, Christo | Christo Jocov (Христо Йоцов) | Composer | 2022 | 1 | |
| Jordan, Sverre | Sverre Jordan | Composer, Conductor | 1936 - 1957 | 8 | |
| Joannides, Alex | Alex Joannides | Composer, Musical Director | 2009 | 2 | |
| Johannesen, Terje | Terje Johannesen | Composer, Musician | 2002 - 2016 | 11 | 1 |
| Jensen, Geir | Geir Jensen | Composer, Musician | 2007 - 2019 | 3 | |
| John, Alan | Alan John | Composer, Sound Designer | 2002 - 2017 | 5 | 1 |
| Johnson, Aaron Krister | Aaron Krister Johnson | Composer, Sound Designer | 2004 | 2 | |
| Jovanović, Stanko | Stanko Jovanović | Conductor | 2011 | 1 | |
| Jensen, Eivind, Gullberg | Eivind Gullberg Jensen | Conductor | 2013 | 1 | 1 |
| Jonas, Rudolf | Rudolf Jonas | Conductor | 1918 | 1 | |
| Jensen, Thomas | Thomas Jensen | Conductor | 1935 - 1943 | 2 | |
| Johnson, Milton | Milton Johnson | Conductor | 1940 | 1 | |
| Joneš, Boris | Boris Joneš | Conductor | 1985 | 1 | |
| Järnefelt, Armas | Armas Järnefelt | Conductor | 1914 | 1 | |
| Jacobson, Ilja | Ilja Jacobson | Conductor | 1928 | 1 | |
| Järvi, Neeme | Neeme Järvi | Conductor | 2006 | 1 | |
| Jánoskúti, Márta | Márta Jánoskúti | Costume Designer | 1995 - 2006 | 4 | 1 |
| Jarc, Mija | Mija Jarc | Costume Designer | 1979 | 1 | |
| Joern, Christine | Christine Joern | Costume Designer | 2003 | 1 | |
| Johnson, Anne | Anne Johnson | Costume Designer | 1957 | 1 | |
| Jossen, Marie-Therese | Marie-Therese Jossen | Costume Designer | 1990 | 1 | |
| Jágr, Miloslav | Miloslav Jágr | Costume Designer | 1965 | 1 | |
| Jaen, Rafael | Rafael Jaen | Costume Designer | 2011 | 1 | |
| Jovanović, Božana | Božana Jovanović | Costume Designer | 1975 - 1982 | 4 | |
| Jokelin, Aili | Aili Jokelin | Costume Designer | 1979 | 1 | |
| Janáková, Radka | Radka Janáková | Costume Designer | 1993 | 1 | |
| Jeżowski, Krzysztof | Krzysztof Jeżowski | Costume Designer | 1983 | 1 | |
| Jokelová, Silvia | Silvia Jokelová | Costume Designer | 2009 - 2011 | 3 | |
| Jensen, Shan | Shan Jensen | Costume Designer | 2010 | 1 | |
| Jodal, Ágnes | Ágnes Jodal | Costume Designer | 1990 | 1 | |
| Jara, Jorge | Jorge Jara | Costume Designer | 1990 | 1 | |
| Jörg, Marianne | Marianne Jörg | Costume Designer | 1992 | 1 | |
| Johnsen, Ole | Ole Johnsen | Costume Designer | 1988 | 1 | |
| Jurglanis, Marla | Marla Jurglanis | Costume Designer | 1998 - 2014 | 2 | |
| Jensen, Karna | Karna Jensen | Costume Designer | 2002 - 2004 | 2 | |
| Jørgensen, Ellen | Ellen Jørgensen | Costume Designer | 2002 | 1 | |
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