M
- Mad River
- Barbara Mandrell* (Capitol Nashville)
- Gordon MacRae
- Meredith MacRae
- Mae*
- Magic System
- Magnificent Men
- Mantronix*
- Marcy Playground*
- Sharon Marie*
- Marillion* (US and Canada)
- Dean Martin*
- Al Martino
- Richard Marx
- Tina Mason*
- Mason Dixon* (Capitol Nashville)
- Conor Maynard
- Maze*
- Kym Mazelle*
- Paul McCartney & Wings*
- McAuley Schenker Group (MSG)
- Delbert McClinton*
- Jennette McCurdy (Capitol Nashville)
- Mindy McCready* (Capitol Nashville)
- Mel McDaniel* (Capitol Nashville)
- Scott McQuaig* (Capitol Nashville)
- MC Hammer*
- Miilkbone*
- McQueen Street (SBK/Capitol)
- Megadeth*
- Roy D. Mercer (Capitol Nashville)
- Dean Miller* (Capitol Nashville)
- Jody Miller
- Mrs. Miller
- Mellow Man Ace
- Ned Miller*
- Steve Miller Band
- Mims* (American King Music/Capitol)
- Kylie Minogue (US)
- Missing Persons
- Molly Hatchet*
- Morningwood
- The Motels
- Dude Mowrey* (Capitol Nashville)
- Anne Murray* (Capitol Nashville)
- Mike E. (Capitol/Star Trak)
- Muzikmonsta (Capitol)
Read more about this topic: List Of Capitol Records Artists