| Bari Bari Legend | May 10, 1986 | — | — |
| Barom-1 | December 7, 2002 | AT-X | 13 |
| Bartender | October 15, 2006 | — | 11 |
| Bartender: Glass of God | April 4, 2024 | — | 12 |
| Basilisk | April 12, 2005 | — | 24 |
| Basilisk: Ōka Ninpō Chō | January 8, 2018 | — | 24 |
| Basquash! | April 3, 2009 | MBS | 26 |
| Battery | July 15, 2016 | — | — |
| Battle B-Daman | January 5, 2004 | TV Tokyo | 103 |
| Battle Game in 5 Seconds | July 12, 2021 | — | 12 |
| Battle Girl High School | July 3, 2017 | — | — |
| Battle Girls: Time Paradox | April 5, 2011 | — | 13 |
| Battle Programmer Shirase | October 3, 2003 | Television Kanagawa | 15 |
| Battle Spirits - Brave | September 12, 2010 | — | — |
| Battle Spirits - Heroes | September 18, 2011 | — | — |
| Battle Spirits [Re] ZEKKAI NO KU | October 2026 | — | — |
| Battle Spirits: Burning Soul | April 1, 2015 | — | 51 |
| Battle Spirits: Double Drive | April 6, 2016 | TV Tokyo | — |
| Battle Spirits: Saikyou Ginga Ultimate Zero | September 22, 2013 | — | 49 |
| Battle Spirits: Shounen Toppa Bashin | September 7, 2008 | — | 50 |
| Battle Spirits: Shōnen Gekiha Dan | September 13, 2009 | — | — |
| Battle Spirits: Sword Eyes | September 9, 2012 | — | — |
| Baxingar | July 6, 1982 | — | — |
| BBK/BRNK | January 9, 2016 | — | — |
| Beanuts | December 15, 1997 | NHK Educational TV | 2 |
| Beast King GoLion | March 4, 1981 | TV Tokyo | 52 |
| Beast Saga | January 13, 2013 | — | 38 |
| Beast Tamer | October 2, 2022 | — | 13 |
| Beast Wars II | April 1, 1998 | — | 43 |
| Beastars | October 10, 2019 | Fuji Television | 48 |
| Beatless | January 13, 2018 | — | 24 |
| Beautiful Bones: Sakurako's Investigation | October 7, 2015 | — | 12 |
| Because I, the True Saint, Was Banished, That Country Is Done For! | January 2027 | — | — |
| Beck | October 7, 2004 | — | 26 |
| Beelzebub | January 9, 2011 | Nippon Television | 60 |
| Beet the Vandel Buster | September 30, 2004 | — | 52 |
| Beet the Vandel Buster: Excellion | October 6, 2005 | — | 25 |
| Belle and Sebastian | April 7, 1981 | NHK General TV | 52 |
| Bem | July 15, 2019 | — | 12 |
| Ben-To | October 9, 2011 | — | 12 |
| Bermuda Triangle: Colorful Pastrale | January 12, 2019 | Tokyo MX | 12 |
| Berserk | October 8, 1997 | Nippon Television | 25 |
| Berserk | July 1, 2016 | — | 24 |
| Berserk of Gluttony | October 5, 2023 | — | 12 |
| Bessatsu Olympia Kyklos | April 20, 2020 | — | — |
| Best Student Council | April 6, 2005 | TV Tokyo | 26 |
| Betrayal Knows My Name | April 11, 2010 | — | — |
| Betrothed to My Sister's Ex | July 5, 2025 | — | 12 |
| Betterman | April 1, 1999 | — | 26 |
| Between the Sky and Sea | October 4, 2018 | — | 12 |
| Beyblade | January 8, 2001 | TV Tokyo | — |
| Beyblade Burst | April 4, 2016 | TX Network | — |
| Beyblade X | May 15, 2023 | TX Network | 60 |
| Beyblade: Metal Fusion | April 5, 2009 | — | 103 |
| Beyblade: Shogun Steel | April 8, 2012 | — | 45 |
| Beyond the Boundary | October 2, 2013 | — | 12 |
| BeyWarriors | — | — | 52 |
| BeyWheelz | August 11, 2012 | — | — |
| Bibliophile Princess | October 6, 2022 | — | 12 |
| Big Order | April 16, 2016 | — | 10 |