- Mildred Good
- Miles Landry
- Mill Run Dulcimer Band
- Millard Presley
- Miller
- Miller Bros. Orchestra
- Miller Duvall
- Millie Dillmount
- Millie Kirkman
- Milligan, Haney, Sabini, Welch
- Milly Mason
- Milo Twins
- Milt Dickey
- Milton Allen
- Milton Brown
- Milton Brown & His Brownies
- Milton Mapes
- Milton Sledge
- Milton Wooldridge
- Mindy Carson
- Mindy McCready
- Minnie Murphy
- Minnie Pearl
- Minton Sparks
- Miranda Crump
- Miranda Lambert
- Mishavonna
- Misisipi Mike Wolf
- Miss Behavin'
- Miss Charlotte
- Miss Helen
- Miss I Frost
- Miss Lana Rebel
- Miss Leslie and Her Juke-Jointers
- Miss Willie Brown
- Missingtime
- Mission City Playboys
- Mississippi Chris Sharp
- Missouri
- Missouri Jennings
- Missouri Mountain Gang
- Missy Raines
- Missy Raines & the New Hip