- The Mudcats -- The Muldoonies
- The Mule -- The Munich Pop Symphonics
- The Munroe Era -- The Muses
- The Muses Rapt -- The Music Machine
- The Music Magicians -- The Musical Theatre
- The Musician -- The Mutants
- The Mutants -- The Myrtles
- The Mystaken -- The Mystic Revelation
- The Mystic Revelation Of Rastafari -- The Nadas
- The Nads -- The Namesakes
- the nanapremes -- The Nashville Tribute Band
- The Nashville Waltz Kings -- The National Duduk Ensemble of Armenia
- The National Lights -- The National Pep