| Mitsuboshi Colors | January 7, 2018 | — | 12 |
| Mitsudomoe | July 2, 2010 | — | 22 |
| Mix | April 6, 2019 | — | — |
| Miyanishi Tatsuya Gekijō: Omae Umasō da na | October 4, 2010 | — | — |
| Miyuki | March 31, 1983 | Fuji Television | 37 |
| Mizuiro Jidai | April 4, 1996 | TV Tokyo | 47 |
| MM! | October 2, 2010 | — | 12 |
| Mnemosyne | February 3, 2008 | — | 6 |
| Mob Psycho 100 | July 12, 2016 | — | 37 |
| Mobile Fighter G Gundam | April 22, 1994 | — | 49 |
| Mobile Suit Gundam | April 7, 1979 | Nagoya Broadcasting Network | 43 |
| Mobile Suit Gundam 00 | October 6, 2007 | — | 50 |
| Mobile Suit Gundam AGE | October 9, 2011 | — | 49 |
| Mobile Suit Gundam GQuuuuuuX | April 9, 2025 | — | 12 |
| Mobile Suit Gundam RG: XARX-ZERO | April 2027 | — | — |
| Mobile Suit Gundam SEED | October 5, 2002 | MBS | 50 |
| Mobile Suit Gundam SEED Destiny | October 9, 2004 | MBS | 50 |
| Mobile Suit Gundam Unicorn RE:0096 | April 3, 2016 | — | 22 |
| Mobile Suit Gundam Wing | April 7, 1995 | TV Asahi | 49 |
| Mobile Suit Gundam ZZ | March 1, 1986 | — | 47 |
| Mobile Suit Gundam-san | July 6, 2014 | — | 13 |
| Mobile Suit Gundam: Iron-Blooded Orphans | October 4, 2015 | — | 50 |
| Mobile Suit Gundam: The Origin – Advent of the Red Comet | April 29, 2019 | NHK General TV | 13 |
| Mobile Suit Gundam: The Witch from Mercury | October 2, 2022 | — | 24 |
| Mobile Suit Victory Gundam | April 2, 1993 | — | 51 |
| Mobile Suit Zeta Gundam | March 2, 1985 | — | 50 |
| Mock & Sweet | October 15, 1986 | — | 49 |
| Modern Magic Made Simple | July 11, 2009 | — | 12 |
| Moegaku | — | — | — |
| Moero! Top Striker | October 10, 1991 | TV Tokyo | 49 |
| Moetan | — | — | — |
| Moeyo Ken | July 1, 2005 | — | 13 |
| Mojacko | October 3, 1995 | — | — |
| Mokke | October 3, 2007 | — | 24 |
| Momentary Lily | January 2, 2025 | — | 13 |
| Momo Kyun Sword | July 9, 2014 | — | 12 |
| Momoiro Sisters | August 26, 1998 | TBS Television | 23 |
| Mon Chéri CoCo | August 27, 1972 | TBS Television | — |
| Mon Colle Knights | January 10, 2000 | TV Tokyo | 51 |
| Monarch: The Big Bear of Tallac | June 7, 1977 | TV Asahi, Asahi Broadcasting Group Holdings | 26 |
| Monchhichi | September 10, 1983 | — | — |
| Monkey Magic | — | — | 13 |
| Monkey Punch: Manga Katsudou Daishashin | July 31, 2004 | — | — |
| Monkey Turn | January 10, 2004 | — | 50 |
| Monkey Typhoon | October 1, 2002 | TV Tokyo | 52 |
| Mono | April 13, 2025 | — | 12 |
| Monochrome Factor | April 7, 2008 | — | 24 |
| Monogatari | July 3, 2009 | — | 100 |
| Mononoke | July 12, 2007 | Fuji Television | 12 |
| Monster | April 6, 2004 | Nippon Television | 74 |
| Monster Eater | April 3, 2026 | — | 12 |
| Monster Girl Doctor | July 12, 2020 | — | 12 |
| Monster Hunter Stories: Ride On | October 2, 2016 | Fuji Television | 75 |
| Monster Musume | July 7, 2015 | — | 12 |
| Monster Rancher | April 17, 1999 | — | 73 |
| Monster Strike: Deadverse Reloaded | October 21, 2025 | — | 10 |
| Monsuno | February 23, 2012 | Nicktoons | 65 |
| Montana Jones | April 2, 1994 | NHK General TV | 52 |
| Monthly Girls' Nozaki-kun | July 7, 2014 | TV Tokyo | 12 |
| Moomin | October 5, 1969 | — | 65 |