M
- Big Tom And The Mainliners
- Warner Mack (born 1938)
- Rita MacNeil (born 1944)
- Uncle Dave Macon (1870–1952)
- Rose Maddox (1925–1998)
- Lloyd Maines (born 1951)
- Charlie Major (born 1954)
- Tim Malchak (born 1957)
- Barbara Mandrell (born 1948)
- Louise Mandrell (born 1954)
- Marcel
- Sarah Marince (born c. 1990)
- Chris Marion (born 1962)
- Dean Martin (1917–1995)
- Krista Marie
- Marie Sisters
- Marshall Dyllon
- Marshall Tucker Band
- Brad Martin (born 1973)
- Leland Martin (born 1957)
- Mila Mason (born 1963)
- Mason Dixon
- Kathy Mattea (born 1959)
- Matthews, Wright & King
- The Mavericks
- McAlyster
- Mac McAnally (born 1957)
- Shane McAnally (born 1974)
- Martina McBride (born 1966)
- McBride & the Ride
- Darrell McCall (born 1940)
- Lila McCann (born 1981)
- Charly McClain (born 1956)
- Harry McClintock (1882–1957)
- Delbert McClinton (born 1940)
- Brian McComas (born 1972)
- Jason McCoy (born 1970)
- Neal McCoy (born 1958)
- Mindy McCready (born 1975)
- Rich McCready (born 1970)
- Scotty McCreery (born 1993)
- Anne McCue
- Jennette McCurdy (born 1992)
- Mel McDaniel (1942–2011)
- Richie McDonald (born 1962)
- Pake McEntire (born 1953)
- Reba McEntire (born 1955)
- Darren McGinnis
- Sean Patrick McGraw
- Tim McGraw (born 1967)
- McGuffey Lane
- Mark McGuinn (born 1968)
- McHayes
- Scott McQuaig (born 1960)
- Jason Meadows
- Tim Mensy (born 1959)
- Jo Dee Messina (born 1970)
- Georgia Middleman (born 1967)
- Buddy Miller (born 1952)
- Dean Miller (born 1966)
- Jody Miller (born 1941)
- Julie Miller (born 1956)
- Ned Miller (born 1925)
- Roger Miller (1936–1992)
- Ronnie Milsap (born 1944)
- Shane Minor (born 1968)
- Beverley Mitchell (born 1981)
- Robert Mizzell (born 1971)
- Molly & the Heymakers
- Vern Monnett (born 1959)
- Ashley Monroe (born 1986)
- Bill Monroe (1911–1996)
- Billy Montana (born 1959)
- Patsy Montana (1908–1996)
- Randy Montana (born 1985)
- Montgomery Gentry
- John Michael Montgomery (born 1965)
- Melba Montgomery (born 1938)
- Justin Moore (born 1984)
- Allison Moorer (born 1972)
- Craig Morgan (born 1965)
- George Morgan (1925–1975)
- Lorrie Morgan (born 1959)
- Whitey Morgan and the 78's
- Gary Morris (born 1948)
- Dude Mowrey (born 1972)
- Megan Mullins (born 1987)
- Michael Martin Murphey (born 1945)
- David Lee Murphy (born 1959)
- Anne Murray (born 1945)
Read more about this topic: List Of Country Music Performers