- The Manhattan Guitars -- The Manic Low
- The Manic Thematic Trio -- The Mantini Sisters
- The Mantini Sisters -- The Maple State
- The Maple State -- The Marbles
- The Marc Atkinson Trio -- The Mares
- The Margarets -- The Marilyn Effect
- The Marilyns -- The Mark Kramer Jazz Trio
- The Mark Leeman Five -- The Marks Brothers
- The Marksman -- The Mars Volta
- The Marsadees -- The Martians
- The Martin -- The Marty Warburton Band
- The Marty Warburton Band -- The Mary Tyler Whores