| Ninja vs. Gokudo | October 8, 2025 | — | 12 |
| Ninjala | January 8, 2022 | TV Tokyo | — |
| Ninku | January 14, 1995 | — | — |
| Nintama Rantarō | April 10, 1993 | NHK General TV | 2,321 |
| Nippon Sangoku | April 7, 2026 | — | — |
| Nippon Tanjō | — | — | — |
| Nippon-ichi no Otoko no Tamashii | January 6, 1999 | TBS Television | — |
| Nisekoi | January 11, 2014 | — | 32 |
| Nmeneko | April 4, 2025 | — | — |
| No Game No Life | April 9, 2014 | AT-X | 12 |
| No Guns Life | October 10, 2019 | — | 24 |
| No Longer Allowed in Another World | July 9, 2024 | — | 12 |
| No Matter How I Look at It, It's You Guys' Fault I'm Not Popular! | July 8, 2013 | — | 12 |
| No-Clipping My Way to Supremacy! | 2027 | — | — |
| No-Rin | January 10, 2014 | Tokyo MX | 12 |
| No. 6 | July 8, 2011 | — | 11 |
| Noa-senpai wa Tomodachi | — | — | — |
| Nobara no Julie | January 4, 1979 | TV Tokyo | 13 |
| Noble Reincarnation | January 8, 2026 | — | 12 |
| Noblesse | October 7, 2020 | — | 13 |
| Nobody's Boy: Remi | October 2, 1977 | — | 51 |
| Nobunaga Concerto | July 12, 2014 | Fuji Television | — |
| Nobunaga Teacher's Young Bride | April 6, 2019 | — | 12 |
| Nobunaga the Fool | January 6, 2014 | — | — |
| Nobunagun | January 5, 2014 | Tokyo MX | 13 |
| Nodame Cantabile | January 12, 2007 | — | 45 |
| Noein | October 12, 2005 | — | 24 |
| Nohara Hiroshi Hirumeshi no Ryūgi | October 3, 2025 | BS Asahi | 12 |
| Noir | April 6, 2001 | TV Tokyo | 26 |
| Non Non Biyori | October 8, 2013 | TV Tokyo | 36 |
| Nono-chan | July 7, 2001 | TV Asahi | 61 |
| Noozles | July 7, 1984 | Fuji Television | 26 |
| Nora, Princess, and Stray Cat | July 12, 2017 | — | 12 |
| Noragami | January 5, 2014 | — | 25 |
| Norakuro | October 5, 1970 | Fuji Television | 26 |
| Norakuro-kun | October 4, 1987 | — | 50 |
| Noramimi | January 9, 2008 | — | 24 |
| Norn9 | January 7, 2016 | — | 12 |
| Noucome | October 10, 2013 | — | 10 |
| Now and Then, Here and There | October 14, 1999 | WOWOW | 13 |
| Now That I Can Control Reality With A Mouse Cursor, I'm Gonna Click Away On The Girls! | — | — | — |
| Now That We Draw | — | — | — |
| NTR: Netsuzou Trap | July 5, 2017 | — | 12 |
| Nue's Exorcist | 2027 | — | — |
| Nukitashi the Animation | July 19, 2025 | — | — |
| Null Meta | 2027 | — | — |
| Number24 | January 8, 2020 | — | — |
| Nura: Rise of the Yokai Clan | July 6, 2010 | — | 48 |
| Nurse Angel Ririka SOS | July 7, 1995 | TV Tokyo | 35 |
| Nurse Witch Komugi-chan R | January 10, 2016 | — | 12 |
| Nyan Koi! | October 1, 2009 | TBS Television | 12 |
| Nyanbo! | September 27, 2016 | — | — |
| Nyanko Days | January 8, 2017 | — | 12 |
| Nyanpire | July 6, 2011 | — | 12 |
| O Maidens in Your Savage Season | July 5, 2019 | — | 12 |
| Obake no Q-tarō | — | — | — |
| Obake Zukan | July 1, 2020 | TV Tokyo | 52 |
| Oblivion Battery | April 10, 2024 | TX Network | 12 |
| Occult Academy | July 5, 2010 | — | 13 |
| Occultic;Nine | October 9, 2016 | — | 12 |