| McVicker, Chris | Chris McVicker | Designer, Lighting Designer | 2019 | 2 | |
| Marziali, Alessandro | Alessandro Marziali | Designer, Lighting Designer | 2015 | 4 | |
| Malmquist, Sandro | Sandro Malmquist | Designer, Director, Translator | 1925 - 1961 | 93 | 1 |
| Márkus, László | László Márkus | Designer, Director, Translator | 1925 - 1948 | 3 | |
| McLaren, Graham | Graham McLaren | Designer, Director | 2004 - 2013 | 18 | |
| Manker, Gustav | Gustav Manker | Designer, Director | 1948 - 1972 | 11 | 1 |
| Madeira, Rui | Rui Madeira | Designer, Director | 2002 - 2023 | 18 | |
| Müller-Multa, Ernst | Ernst Müller-Multa | Designer, Director | 1939 | 2 | |
| Manninen, Mauno | Mauno Manninen | Designer, Director | 1951 - 1962 | 4 | 1 |
| Manidaki, Eva | Eva Manidaki | Designer, Director | 2013 - 2020 | 2 | |
| Maister, Nigel | Nigel Maister | Designer, Director | 1999 | 2 | |
| Mihaiu, Horaţiu | Horaţiu Mihaiu | Designer, Director | 2016 | 4 | |
| Maldonado, Andrès Arce | Andrès Arce Maldonado | Designer, Director | 2014 | 2 | |
| Margowski, Andrzej | Andrzej Margowski | Designer, Director | 2019 | 2 | |
| Ming, Gu | Gu Ming | Designer | 1998 - 2006 | 4 | |
| Macpherson, William | William Macpherson | Designer | 1956 | 1 | |
| Madsen, Soren | Soren Madsen | Designer | 2001 | 2 | |
| Manthey, Simone | Simone Manthey | Designer | 1998 - 2016 | 5 | 1 |
| Marker, Alex | Alex Marker | Designer | 2004 | 1 | |
| Marshall, Stuart | Stuart Marshall | Designer | 2000 | 1 | |
| Martin, Harald | Harald Martin | Designer | 1954 - 1973 | 8 | 1 |
| Massera, Jarmila | Jarmila Massera | Designer | 1971 | 1 | |
| Masson, Ernst | Ernst Masson | Designer | 1973 | 1 | |
| McCord, Michael | Michael McCord | Designer | 2000 | 1 | |
| McKintosh, Peter | Peter McKintosh | Designer | 2003 - 2007 | 4 | 1 |
| Meyer, Hartmut | Hartmut Meyer | Designer | 1985 - 1994 | 4 | |
| Miller, Manfred | Manfred Miller | Designer | 1947 - 1963 | 4 | |
| Minami, Masahiro | Masahiro Minami | Designer | 1990 | 1 | |
| Morgan, James | James Morgan | Designer | 1994 | 1 | |
| Moser, Wolfgang | Wolfgang Moser | Designer | 1960 - 1977 | 3 | |
| Motley, Robert | Robert Motley | Designer | 1956 | 1 | |
| Moyer, Allen | Allen Moyer | Designer | 1993 | 1 | |
| Murchison, Ruari | Ruari Murchison | Designer | 2002 - 2006 | 10 | |
| Muszyński, Antoni | Antoni Muszyński | Designer | 1955 | 1 | |
| Muzzolon, Marco | Marco Muzzolon | Designer | 1999 - 2014 | 3 | |
| Mylrae, John | John Mylrae | Designer | 1939 | 1 | |
| McClennahan, Charles H. | Charles H. McClennahan | Designer | 1989 | 1 | |
| Madsen, Kristian Riis | Kristian Riis Madsen | Designer | 2006 | 1 | |
| Mabusenko, V. | V. Mabusenko | Designer | 1999 - 2000 | 2 | |
| Matul, Niko | Niko Matul | Designer | 1979 | 1 | |
| Marchant, Nicolas | Nicolas Marchant | Designer | 2002 | 1 | |
| Müller, V. | V. Müller | Designer | 1939 | 1 | |
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