| 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 |
| Noddy, Toyland Detective | March 26, 2016 | Super RTL, France 5, Universal Kids, Milkshake! | 52 |
| Noein | October 12, 2005 | — | 24 |
| Nogalo | — | Croatian Radiotelevision | 39 |
| Nogizaka Haruka no Himitsu: Finale | August 17, 2012 | — | 4 |
| 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 |
| Noodles and Nedd | — | — | — |
| 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 |
| Norman Normal | 2000 | Super RTL, France 3, TG4 | 52 |
| Norn9 | January 7, 2016 | — | 12 |
| Not long before | — | — | — |
| Noucome | October 10, 2013 | — | 10 |
| Nouky and Friends | 2006 | RTL Club | 78 |
| Novators | September 13, 2010 | Carousel | 53 |
| 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 | — | — | — |
| Nozomi Witches | 1992 | — | — |
| NTR: Netsuzou Trap | July 5, 2017 | — | 12 |
| Nue's Exorcist | 2027 | — | — |
| Nukitashi the Animation | July 19, 2025 | — | — |
| Null Meta | 2027 | — | — |
| Numb Chucks | January 7, 2014 | YTV | 52 |
| Number24 | January 8, 2020 | — | — |
| Numberblocks | January 23, 2017 | CBeebies | 90 |
| Nura: Rise of the Yokai Clan | July 6, 2010 | — | 48 |
| Nurse Angel Ririka SOS | July 7, 1995 | TV Tokyo | 35 |
| Nurse Witch Komugi | August 23, 2002 | — | 7 |
| Nurse Witch Komugi-chan R | January 10, 2016 | — | 12 |
| Nussa | November 20, 2018 | — | 73 |
| Nutri Ventures | September 26, 2012 | RTP2 | 102 |
| Nyan Koi! | October 1, 2009 | TBS Television | 12 |
| Nyanbo! | September 27, 2016 | — | — |
| Nyanko Days | January 8, 2017 | — | 12 |
| Nyanpire | July 6, 2011 | — | 12 |
| O (Sur)real Mundo de Any Malu | March 16, 2019 | Cartoon Network | 111 |
| O Hostel da Joana | May 24, 2019 | — | — |
| O klukovi z plakátu | 1970 | — | — |
| O loupeznickém synku Cipískovi | 1972 | — | — |
| O loupežníku Rumcajsovi | 1967 | — | 52 |
| O Maidens in Your Savage Season | July 5, 2019 | — | 12 |
| O zvířátkách pana Krbce | 1980 | — | 13 |
| Obake no Q-tarō | — | — | — |
| Obake Zukan | July 1, 2020 | TV Tokyo | 52 |
| Oblivion Battery | April 10, 2024 | TX Network | 12 |