| LOVE-HATE RELATIONSHIP | | Sarina NIHEI | 2012 | 3 Min. | Nippon Animation | 2020 |
| Lu Over the Wall | 夜明け告げるルーのうた | Masaaki YUASA | 2017 | 107 Min. | Nippon Animation | 2018 |
| Lupin III: The First | ルパン三世 THE FIRST | Takashi YAMAZAKI | 2019 | 93 Min. | Nippon Animation | 2021 |
| Macky and Eucky in Midnight Gallery | | Rushio MORIYAMA | 2015 | 8 Min. | Nippon Animation | 2016 |
| Mad Love | | Ryoji YAMADA | 2017 | 3:16 Min. | Nippon Animation | 2018 |
| Magnified City | | Isaku KANEKO | 2022 | 12 Min. | Nippon Animation | 2023 |
| Mary And The Witch's Flower | メアリと魔女の花 | Hiromasa YONEBAYASHI | 2017 | 102 Min. | Nippon Animation | 2018 |
| Mayumi | まゆみ | Chinami TANIGUCHI | 2016 | 5:36 Min. | Nippon Animation | 2016 |
| Maze King | | Hakhyun KIM | 2013 | 7:01 Min. | Nippon Animation | 2013 |
| Mein Nachbar Totoro | となりのトトロ | Hayao MIYAZAKI | 1988 | 86 Min. | Nippon Animation | 2022 |
| Melting Down | すこやかな歪み | Takuto KATAYAMA | 2015 | 3:12 Min. | Nippon Animation | 2015 |
| METAMORPHOSE | | Reiko YOKOSUKA | 2018 | 3:46 Min. | Nippon Animation | 2019 |
| Millennium Actress | 千年女優 | Satoshi KON | 2021 | 87 Min. | Nippon Animation | 2022 |
| Mimi | Mimi | Lisa FUKAYA | 2018 | 4 Min. | Nippon Animation | 2020 |
| Mind Room | | Moe KURIBARA | 2017 | 4:11 Min. | Nippon Animation | 2017 |
| Mirai | 未来のミライ | Mamoru HOSODA | 2018 | 98 Min. | Nippon Animation | 2019 |
| Miss Hokusai | 百日紅〜Miss HOKUSAI〜 | Keiichi HARA | 2015 | 90 Min. | Nippon Animation | 2020, 2016 |
| Missing You | 白いうなばら | Satomi MAIYA | 2015 | 6:25 Min. | Nippon Animation | 2015 |
| Monorail | | Shizuko TABATA | 2020 | 7 Min. | Nippon Animation | 2022 |
| Moonlit Night And Opal | 月夜&オパール | Shishi YAMAZAKI | 2015 | 3:21 Min. | Nippon Animation | 2015 |
