| Name | Alternative/Original Name | Tags |
|---|---|---|
| Mari Iijima | Female, Japanese, J-Pop | |
| Masami Okui | 奥井雅美 | Female, Japanese, J-Pop |
| Masami Okui feat. Megumi Hayashibara | Female, Collaboration, Japanese, J-Pop | |
| Masayoshi Yamazaki | 山崎まさよし | Male, Japanese, J-Pop |
| Mashiro Ayano | 綾野ましろ | Female, Japanese, J-Pop |
| Matsuko Mawatari | 馬渡 松子 | Female, Japanese, J-Pop |
| May'n / Megumi Nakajima | May'n/中島愛 | Female, Collaboration, Japanese, J-Pop |
| Megumi Hayashibara | 林原めぐみ | Female, Japanese, J-Pop |
| Megumi Hinata | 日向めぐみ | Female, Japanese, J-Pop |
| Megurine Luka | 巡音ルカ | Pop, Vocaloid, Japanese |
| Mika Nakashima | 中島美嘉 | Female, Japanese, J-Pop |
| Mikuni Shimokawa | 下川 みくに | Female, Japanese, J-Pop |
| Mitsuko Horie | 堀江美都子 | Female, Japanese, J-Pop |
| Mongol800 | J-Rock, Band, Japanese | |
| MONKEY MAJIK | J-Rock, Band, Japanese | |
| Morning Musume | モーニング娘。 | Band, Japanese, J-Pop |
| Mr. Children | Mr.Children | J-Rock, Band, Japanese |
| Namie Amuro | 安室奈美恵 | Female, Japanese, J-Pop |
| Nami Tamaki | 玉置成実 | Female, Japanese, J-Pop |
| Nana Kitade | 北出菜奈 | Female, Japanese, J-Pop |
| Nana Mizuki | 水樹 奈々 | Female, Japanese, J-Pop |
| Naomi Tamura | 田村直美 | Female, Japanese, J-Pop |
| NICO Touches the Walls | J-Rock, Band, Japanese | |
| NIGHTMARE | ナイトメア | J-Rock, Band, Japanese |
| NIRGILIS | Band, Japanese, J-Pop |