| Giesen, Julius | Julius Giesen | Musical Director | 1906 | 1 | |
| Gonis, Alexandros | Alexandros Gonis | Musical Director | 2014 - 2015 | 2 | |
| Grønning, Christian | Christian Grønning | Musical Director | 1989 | 2 | |
| Gogou, Elisa | Elisa Gogou | Musical Director | 2014 | 1 | |
| Gillich, Hans | Hans Gillich | Musical Director | 1966 - 1974 | 2 | |
| Grigoriu, Theodor | Theodor Grigoriu | Musical Director | 1963 | 1 | |
| Gabrielescu, Alexandru | Alexandru Gabrielescu | Musical Director | 1954 | 1 | |
| Gutheil, Gustav | Gustav Gutheil | Musical Director | 1902 | 1 | |
| Gazirov, R. | R. Gazirov | Musical Director | 1977 | 1 | |
| Gohari, Navid | Navid Gohari | Musical Director | 2015 | 1 | |
| Green, William | William Green | Musical Director, Musician | 2006 | 2 | |
| Galussio, Mariano | Mariano Galussio | Musical Director, Musician | 2021 | 14 | |
| Gundersen, Trond | Trond Gundersen | Musician | 2008 | 1 | |
| Grindal, Are | Are Grindal | Musician | 2013 | 1 | |
| Grøndahl, Terje | Terje Grøndahl | Musician | 2013 | 1 | |
| Gulbrandsen, Tonje | Tonje Gulbrandsen | Musician | 2013 | 1 | |
| Guangting, Zhao | Zhao Guangting | Musician | 2006 - 2009 | 5 | |
| Guiot, Christophe | Christophe Guiot | Musician | 1981 | 2 | |
| Gérard Vidal, Gérard | Gérard Gérard Vidal | Musician | 1981 | 2 | |
| Groot, Eido | Eido Groot | Musician | 1985 | 1 | |
| Godtschalk, Ilse | Ilse Godtschalk | Musician | 1991 | 1 | |
| Götze, Tom | Tom Götze | Musician | 2002 | 1 | |
| Georgiou, Kostas | Kostas Georgiou | Musician | 2002 | 1 | |
| Gerrard-Pinker, Chris | Chris Gerrard-Pinker | Musician | 2002 | 1 | |
| Gregg, James | James Gregg | Musician | 2003 | 1 | |
| Gustavsson, Eva | Eva Gustavsson | Musician | 2001 | 1 | |
| Guber, Carola | Carola Guber | Musician | 2001 - 2002 | 2 | |
| Gstättner, Maria | Maria Gstättner | Musician | 2008 | 1 | |
| Gabriele, Lorenzo | Lorenzo Gabriele | Musician | 2010 | 1 | |
| Goramane, Prashant Madhyast | Prashant Madhyast Goramane | Musician | 2015 | 1 | |
| Ghekiere, Herlinde | Herlinde Ghekiere | Musician | 2009 | 16 | |
| Gagnon, Christopher | Christopher Gagnon | Musician | 2011 | 1 | |
| Grint, Annemarie van de | Annemarie van de Grint | Musician | 1999 | 1 | |
| Gridseth, Odd Magne | Odd Magne Gridseth | Musician | 1992 | 1 | |
| Gusset, Monique | Monique Gusset | Musician | 1978 | 1 | |
| Goschenhofer, Katrin | Katrin Goschenhofer | Musician | 1991 | 1 | |
| Gmeindl, Stefan | Stefan Gmeindl | Musician | 1995 | 1 | |
| Groh, Norbert | Norbert Groh | Musician | 2017 | 1 | |
| Grossi, Lorenzo | Lorenzo Grossi | Musician | 2018 | 1 | |
| Gaggino, Emanuel | Emanuel Gaggino | Musician | 2018 | 1 | |
| Guaita, Annabel | Annabel Guaita | Musician | 2019 | 1 | |
| Gombac, Maja | Maja Gombac | Musician | 2016 - 2019 | 5 | |
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