* Maaya Sakamoto
* The Mad Capsule Markets
* Maher Shalal Hash Baz
* Maki Nomiya (野宮真貴 Nomiya Maki)
* Mai Kuraki
* Mai Fukuta
* Malice Mizer
* Mami Kawada
* Mao Abe
* Mass of the Fermenting Dregs
* Matenrou Opera
* Maximum the Hormone (マキシマム ザ ホルモン Makishimamu za horumon)
* Mechanical Panda
* MEG
* Megamasso (メガマソ Megamaso)
* Megaromania
* Melt-Banana
* Merengue
* Merry (メリー Merī)
* Merzbow (メルツバウ Merutsubau)
* Metal Safari
* Metronome (メトロノーム Metoronōmu)
* M-Flo
* Miaou
* Midori Hirano
* Mihara
* mihimaru GT
* Mika Arisaka
* Mika Nakashima
* Mikuni Shimokawa
* Missile Innovation
* Miwa
* Mix Speakers, Inc
* Miyavi (雅-Miyavi-)
* Mizuki Nana
* Moi dix Mois
* Mono (物)
* Monoral
* Moon Kana
* The Mops (ザ・モップス Za Moppusu)
* Morning Musume (モーニング娘。 Mōningu Musume.)
* m.o.v.e
* Mr. Children
* Mucc (ムック Mukku)
* Mute Beat
* Myproof