| Mamotte Shugogetten | October 17, 1998 | TV Asahi | 22 |
| Mamotte! Lollipop | July 1, 2006 | — | 13 |
| Management of Novice Alchemist | October 3, 2022 | — | 12 |
| Manaria Friends | January 20, 2019 | — | 10 |
| Maoyu | January 5, 2013 | Tokyo MX | 12 |
| MapleStory | October 7, 2007 | TV Tokyo | 26 |
| Mashin Hero Wataru | April 15, 1988 | Nippon Television | 45 |
| May I Ask for One Final Thing? | October 4, 2025 | — | 13 |
| Maze | July 24, 1996 | — | 2 |
| Maze | April 2, 1997 | — | 25 |
| Melody of Oblivion | April 6, 2004 | — | 24 |
| Merc Storia: The Apathetic Boy and the Girl in a Bottle | October 11, 2018 | — | 12 |
| Mermaid Melody Pichi Pichi Pitch | April 5, 2003 | TV Aichi | 91 |
| Miss Kobayashi's Dragon Maid | January 12, 2017 | — | 25 |
| Miss Kuroitsu from the Monster Development Department | January 9, 2022 | — | 12 |
| Modern Magic Made Simple | July 11, 2009 | — | 12 |
| Moeyo Ken | November 19, 2003 | — | 4 |
| Moeyo Ken | July 1, 2005 | — | 13 |
| Mojacko | October 3, 1995 | — | — |
| Mon Colle Knights | January 10, 2000 | TV Tokyo | 51 |
| Monkey Typhoon | October 1, 2002 | TV Tokyo | 52 |
| Monochrome Factor | April 7, 2008 | — | 24 |
| Monster Girl Doctor | July 12, 2020 | — | 12 |
| Monster Hunter Stories: Ride On | October 2, 2016 | Fuji Television | 75 |
| Monster Musume | July 7, 2015 | — | 12 |
| Moomin | October 5, 1969 | — | 65 |
| Moribito: Guardian of the Spirit | April 7, 2007 | NHK Satellite 2 Television | 26 |
| Mrs. Pepper Pot | April 4, 1983 | NHK General TV | 130 |
| Muka Muka Paradise | September 4, 1993 | — | — |
| Mushi-Uta | July 6, 2007 | WOWOW | — |
| Mushoku Tensei | January 11, 2021 | — | 48 |
| My Daughter Left the Nest and Returned an S-Rank Adventurer | October 6, 2023 | — | 13 |
| My Favorite Fairy Tales | 1986 | — | 14 |
| My Instant Death Ability Is So Overpowered | January 5, 2024 | — | 12 |
| My Isekai Life | July 4, 2022 | — | 12 |
| My Master Has No Tail | September 30, 2022 | — | 13 |
| My Next Life as a Villainess: All Routes Lead to Doom! | April 5, 2020 | — | 24 |
| My One-Hit Kill Sister | April 8, 2023 | — | 12 |
| My Status as an Assassin Obviously Exceeds the Hero's | October 7, 2025 | — | 12 |
| My Sword Saint Master Is Too Cute to Live With! | January 2027 | — | — |
| My Unique Skill Makes Me OP Even at Level 1 | July 8, 2023 | — | 12 |
| My-HiME | September 30, 2004 | TV Tokyo | 26 |
| MÄR | April 3, 2005 | — | 102 |
| Nabari no Ou | April 6, 2008 | — | 26 |
| Nagi-Asu: A Lull in the Sea | October 3, 2013 | — | 26 |
| Nanami-chan | May 17, 2004 | — | — |
| Naruto: Shippūden | February 15, 2007 | TV Tokyo | 500 |
| Necromancer Isekai: How I Went from Abandoned Villager to the Emperor's Favorite | 2027 | — | — |
| Negima!? | October 4, 2006 | — | 26 |
| Neo Angelique Abyss | April 6, 2008 | TV Tokyo | 13 |
| Neo Ranga | April 6, 1998 | WOWOW | 48 |
| Nessa no Haō Gandalla | April 11, 1998 | WOWOW | 26 |
| New Moomin | January 9, 1972 | — | 52 |
| New Saga | July 3, 2025 | — | 12 |
| NG Knight Lamune & 40 | April 6, 1990 | — | 38 |
| Nina the Starry Bride | October 10, 2024 | — | 12 |
| Ninja Senshi Tobikage | October 6, 1985 | — | 43 |
| No Doubt in Us | — | — | — |
| No Game No Life | April 9, 2014 | AT-X | 12 |
| No Longer Allowed in Another World | July 9, 2024 | — | 12 |