| All Out!! | October 7, 2016 | — | 25 |
| All Purpose Cultural Cat Girl Nuku Nuku | September 21, 1992 | — | — |
| All Purpose Cultural Cat Girl Nuku Nuku | January 7, 1998 | — | 12 |
| Allison & Lillia | April 3, 2008 | NHK Satellite 2 Television | 26 |
| Alma-chan Wants to Be a Family! | October 5, 2025 | AT-X | 11 |
| Alpen Rose | April 6, 1985 | Fuji Television | 20 |
| Altair: A Record of Battles | July 7, 2017 | — | 24 |
| Always a Catch! | April 2, 2026 | — | 12 |
| Always! Super Radical Gag Family | July 6, 2014 | Tokyo MX, Sun Television, Niconico Channel | 24 |
| Alya Sometimes Hides Her Feelings in Russian | July 3, 2024 | — | 12 |
| AM Driver | April 5, 2004 | — | 51 |
| Am I Actually the Strongest? | July 2, 2023 | — | 12 |
| Amagami SS | 2010 | — | 26 |
| Amagi Brilliant Park | October 7, 2014 | Tulip Television, Tohoku Broadcasting Company, RKB Mainichi Broadcasting, BS-TBS, MBS, TBS Television, TBS Channel, CBC Television Co. | 14 |
| Amaim Warrior at the Borderline | October 5, 2021 | — | 25 |
| Amanchu! | July 8, 2016 | — | 24 |
| Amatsuki | April 4, 2008 | — | 13 |
| Ameku M.D.: Doctor Detective | January 2, 2025 | — | 12 |
| Amnesia | January 7, 2013 | — | 12 |
| An Adventurer's Daily Grind at Age 29 | January 7, 2026 | — | 12 |
| An Archdemon's Dilemma: How to Love Your Elf Bride | April 5, 2024 | — | 12 |
| An Observation Log of My Fiancée Who Calls Herself a Villainess | April 3, 2026 | — | 12 |
| Ancient Girl's Frame | October 11, 2021 | — | 12 |
| And Yet The Town Moves | October 8, 2010 | — | 12 |
| And You Thought There Is Never a Girl Online? | April 7, 2016 | — | 12 |
| Andersen Monogatari | January 3, 1971 | — | — |
| Android Ana Maico 2010 | April 6, 1998 | WOWOW | 24 |
| Android Kikaider | October 16, 2000 | Kids Station | — |
| Ange Vierge | July 10, 2016 | — | 12 |
| Angel Beats! | April 2, 2010 | — | 13 |
| Angel Blade | December 14, 2001 | — | 3 |
| Angel Blade Punish! | December 29, 2004 | — | 3 |
| Angel Cop | September 1, 1989 | — | 6 |
| Angel Core: Tenshi-tachi no Sumika | January 25, 2003 | — | 2 |
| Angel Densetsu | September 13, 1996 | — | 2 |
| Angel Heart | October 3, 2005 | Nippon Television | 50 |
| Angel Links | April 7, 1999 | WOWOW | 13 |
| Angel Sanctuary | May 25, 2000 | — | 3 |
| Angel Tales | October 4, 2001 | — | 13 |
| Angel's 3Piece! | July 10, 2017 | — | 12 |
| Angel's Feather | April 4, 2006 | — | 2 |
| Angelic Layer | April 1, 2001 | TV Tokyo | 26 |
| Angels in the Court | October 27, 2000 | — | 2 |
| Angels of Death | July 6, 2018 | — | 16 |
| Angie Girl | December 13, 1977 | Asahi Television Broadcasting Corporation | 26 |
| Angolmois: Record of Mongol Invasion | July 11, 2018 | — | 12 |
| Ani Tore! EX | October 13, 2015 | — | — |
| Ani*Kuri15 | May 7, 2007 | NHK BS1 | — |
| Anima Yell! | October 7, 2018 | — | 12 |
| Animal Yokochō | October 4, 2005 | TV Tokyo | 51 |
| Animated Classics of Japanese Literature | April 25, 1986 | — | 32 |
| Animation Kikō: Marco Polo no Bōken | April 7, 1979 | NHK General TV | — |
| Animation x Paralympic | November 10, 2017 | — | — |
| Anime Ai no Awa Awa Hour | August 1, 1999 | — | 12 |
| Anime Document: München e no Michi | April 23, 1972 | TBS Television | 16 |
| Anime Ganbare Goemon | October 4, 1997 | — | — |
| Anime Himitsu no Hanazono | April 19, 1991 | NHK General TV | 39 |
| Anime Kapibara-san | October 9, 2020 | — | 24 |
| Anime Shūkan DX! Mi-Pha-Pu | February 14, 1998 | TV Asahi | — |
| Anime-Gatari | — | — | — |