Groups
- monaka doumei 3
- monica 3
- monimoni dan. 3
- monke 3
- monoceros 3
- monokichi youhoujou 3
- monokurored 3
- monotool 3
- monster ken 3
- monsters biscuit 3
- montana 3
- montparnasse 3
- moon parrot 3
- mooncage 3
- moongarden 3
- mootan 3
- more and more 3
- more beat 3
- mori no kii-san 3
- mori no komichi 3
- mori no kumasan yuugekitai 3
- morioka syachu 3
- moriyama 3
- morozumix 3
- morumo 3
- morutaya 3
- mosaic 3
- mother mix 3
- motu club 3
- mousou goten 3
- mousou katharsis 3
- mousou tokkyuu 3
- mousou zangi 3
- mousou zukan 3
- mowano 3
- mozukusuo shinjiro 3
- ms is 3
- muboubi-kei momokami kyonyuu bishoujo 3
- mucchiri momo an 3
- muchimuchi namaniku 3
- mud crab 3
- mudflat 3
- mugen garou 3
- mugen kouya 3
- mugi-batake 3
- mugimugi 3
- mugishibori 3
- mugiya 3
- muhandou choukaryoku 3
- muko mubyuu 3