| M | M | M | |||
| Known by Name | YouTube Content | Born | Died | St. | Notes --- (Home / www.BluesWorship.com) |
| Magic Sam | 30 | 1937 | 1969 | MS | Samuel Gene Maghett (02/14/1937 - 12/01/1969) |
| Magic Slim | 41 | 1937 | 2013 | MS | Morris Holt (Aug. 7, 1937 – Feb. 21, 2013) |
| Mark Knopfler | 80 | 1949 | UK | Mark Freuder Knopfler, OBE (born 12 August 1949) | |
| Marshall Owens | 4 | 1890 | ??? | GA | |
| Martin Barre | 71 | 1946 | UK | Martin Lancelot Barre (born 17 November 1946) | |
| Matt Guitar Murphy | 43 | 1929 | MS | Matthew Murphy (born December 29, 1929) | |
| Mattie Delaney | 26 | 1905 | ??? | MS | (ca. 1905 – unknown) |
| Mel Brown | 71 | 1939 | 2009 | US | (October 7, 1939 – March 20, 2009) |
| Memphis Minnie | 878 | 1897 | 1973 | LA | Lizzie Douglas (June 3, 1897 – August 6, 1973) |
| Michael Bloomfield | 507 | 1943 | 1981 | IL | Michael Bernard Bloomfield, 7/28/1943 – 2/15/1981 |
| Michael Campbell | 34 | 1969 | FL | Michael Shane Campbell, CNZM (born 23 Feb. 1969) | |
| Mick Abrahams | 9 | 1943 | UK | Michael Timothy 'Mick' Abrahams (born 7 April 1943) | |
| Mick Fleetwood | 137 | 1947 | UK | Michael John Kells Fleetwood (born 24 June 1947) | |
| Mick Jones | 1 | 1955 | UK | Michael Geoffrey "Mick" Jones, 6/26/1955 (The Clash) | |
| Mick Jones | 5 | 1944 | UK | Michael Leslie "Mick" Jones, 12/27/1944 (Foreigner) | |
| Mick Taylor | 493 | 1949 | UK | Michael Kevin "Mick" Taylor (born 17 January 1949) | |
| Mississippi Fred McDowell | 521 | 1904 | 1972 | TN | (January 12, 1904 – July 3, 1972) |
| Mississippi Joe Callicott | 81 | 1899 | 1969 | MS | (October 10, 1899 – 1969) |
| Mississippi John Hurt | 175 | 1893 | 1892 | MS | John Smith Hurt, 7/3/1893 or 3/8/1892 – 11/2/1966 |
| Moody Jones | 7 | 1908 | 1988 | AR | (April 8, 1908 – March 23, 1988) |
| Muddy Waters | 1,789 | 1913 | 1983 | MS | McKinley Morganfield (April 4, 1913 – April 30, 1983) |