- Matt Jackson -- Matt Jasper
- Matt jazz quintet -- Matt John
- Matt John -- Matt Jones
- Matt Jordan -- Matt Kanelos
- Matt Karrey -- Matt Keegan Trio
- Matt Keen -- Matt and Kim
- Matt King -- Matt Kollar And The Angry Mob
- Matt Konfirst -- Matt Kroll
- Matt Krysko -- Matt Langley
- Matt Langlois -- Matt LeFevers
- Matt Lefevers -- Matt Linder
- Matt Littlejohn -- Matt Lorentzen
- Matt Lorenz -- Matt Lund
- Matt "Luther" Wells and Blue Steel 44 -- Matt Mahan
- Matt Maher -- Matt Mango
- Matt Margucci -- Matt Marvuglio
- Matt Masih -- Matt Mays
- Matt Mays & El Torpedo -- Matt McGinn
- Matt McGrath -- Matt Melashenko
- Matt Melashenko -- Matt Milton
- Matt Minglewood -- Matt Monroe