- The Matt Lloyd Project -- The Mavis's
- The Mavs -- The Maybellines
- The Mayberry Movement -- The McBrides
- The McCabes -- The McDonald Family (Aunt Mollie & Joe)
- The McDonald Sisters -- The MD X-Spress
- The MDP -- The Measure
- The Measures -- The Medicals
- The Medici Quartet -- The Meemies
- The Meenies -- The Melachrino Strings And Orchestra
- The Melancholy Ramblers -- The Mellowtrons
- The Mellstock Band -- The Mels
- The Meltdowns -- The Memphis Horns
- The Memphis Jones Revolution -- The Men