| Name | Functions  | Event Dates | Events | Resources | ||
|---|---|---|---|---|---|---|
| Eivind Gullberg Jensen | Conductor | 2013 | 1 | 1 | ||
| Rudolf Jonas | Conductor | 1918 | 1 | |||
| Thomas Jensen | Conductor | 1935 - 1943 | 2 | |||
| Milton Johnson | Conductor | 1940 | 1 | |||
| Boris Joneš | Conductor | 1985 | 1 | |||
| Armas Järnefelt | Conductor | 1914 | 1 | |||
| Ilja Jacobson | Conductor | 1928 | 1 | |||
| Neeme Järvi | Conductor | 2006 | 1 | |||
| Alan John | Composer, Sound Designer | 2002 - 2017 | 5 | 1 | ||
| Aaron Krister Johnson | Composer, Sound Designer | 2004 | 2 | |||
| Terje Johannesen | Composer, Musician | 2002 - 2016 | 11 | 1 | ||
| Geir Jensen | Composer, Musician | 2007 - 2019 | 3 | |||
| Alex Joannides | Composer, Musical Director | 2009 | 2 | |||
| Sverre Jordan | Composer, Conductor | 1936 - 1957 | 8 | |||
| Pradeep Jayathilake | Composer | 2006 | 7 | |||
| Leif Jordanssen | Composer | 2008 | 4 | |||
| Robert Jud | Composer | 1977 | 1 | |||
| W. Junge | Composer | 1889 | 1 | |||
| Leoš Janáček | Composer | 1994 - 1996 | 3 | |||
| Sverre Indris Joner | Composer | 2004 - 2006 | 22 | |||
| Geir Jenssen | Composer | 2010 - 2013 | 5 | |||
| Antanas Jasenka | Composer | 2012 | 1 | |||
| Jæwer Jæv | Composer | 2005 - 2006 | 9 | |||
| Liu Jiankuan | Composer | 2006 - 2010 | 7 | |||
| Karel Boleslav Jirák | Composer | 1922 | 1 | |||
| Lado Jakša | Composer | 1986 | 1 | |||
| Aloys John | Composer | 1985 | 1 | |||
| Tassilo Jelde | Composer | 1985 | 1 | |||
| Bob James | Composer | 1990 | 1 | |||
| Chris Jordan | Composer | 1990 - 1992 | 2 | |||
| Scott Joplin | Composer | 1994 | 1 | |||
| Stefan Johansson | Composer | 2014 - 2015 | 44 | 1 | ||
| Milan Jíra | Composer | 1979 - 2000 | 3 | |||
| Rainer Jörissen | Composer | 1997 - 2007 | 4 | |||
| Václav Jedlièka | Composer | 2012 | 1 | |||
| Helén Jonsson | Composer | 2002 - 2003 | 3 | |||
| Jóhann Jóhannsson | Composer | 2003 | 1 | |||
| Dan Jones | Composer | 2004 - 2012 | 2 | 1 | ||
| Vítek Jíra | Composer | 2006 | 1 | |||
| Lee Johnson | Composer | 2005 | 3 | |||
| Dan Jelescu | Composer | 1963 | 1 | |||
| Sylvain Jacques | Composer | 2006 - 2025 | 3 | |||