| Blood-C | July 1, 2011 | — | 12 |
| Bloom Into You | October 5, 2018 | AT-X | 13 |
| Bludgeoning Angel Dokuro-Chan | March 13, 2005 | — | 12 |
| Bludgeoning Angel Dokuro-Chan 2 | August 11, 2007 | — | 4 |
| Blue Archive the Animation | April 7, 2024 | — | — |
| Blue Blink | April 7, 1989 | NHK General TV | 39 |
| Blue Box | October 3, 2024 | — | 25 |
| Blue Comet SPT Layzner | October 3, 1985 | — | 38 |
| Blue Comet SPT Layzner | August 21, 1986 | — | 3 |
| Blue Dragon | April 7, 2007 | Cartoon Network, Indosiar | 51 |
| Blue Drop | October 2, 2007 | — | 13 |
| Blue Exorcist | April 17, 2011 | — | 37 |
| Blue Gender | October 10, 1999 | TBS Television | 26 |
| Blue Lock | October 9, 2022 | — | 38 |
| Blue Miburo | October 12, 2024 | — | — |
| Blue Orchestra | April 9, 2023 | NHK Educational TV | 24 |
| Blue Period | October 2, 2021 | — | 12 |
| Blue Reflection Ray | April 10, 2021 | — | 24 |
| Blue Seed | October 5, 1994 | TV Tokyo | 26 |
| Blue Seed 2 | July 24, 1996 | — | 3 |
| Blue Sonnet | July 16, 1989 | — | 5 |
| BNA: Brand New Animal | April 8, 2020 | — | 12 |
| Boarding School Juliet | October 6, 2018 | — | 12 |
| Bobobo-bo Bo-bobo | November 8, 2003 | — | 76 |
| Bocchi the Rock! | October 9, 2022 | — | 12 |
| Bocchi the Rock! | — | — | — |
| Bodacious Space Pirates | January 8, 2012 | — | 26 |
| Bofuri | January 8, 2020 | — | 24 |
| Bogus Skill "Fruitmaster" | January 7, 2025 | — | 12 |
| Boku no Imōto wa "Ōsaka Okan" | December 21, 2012 | — | 12 |
| Bokurano | April 9, 2007 | — | 24 |
| Bomberman B-Daman Bakugaiden | February 7, 1998 | — | — |
| Bomberman B-Daman Bakugaiden Victory | February 7, 1999 | — | 50 |
| Bomberman Jetters | October 2, 2002 | TV Tokyo | 52 |
| BONJOUR♪Sweet Love Patisserie | October 2014 | — | — |
| Boogiepop and Others | January 4, 2019 | — | 18 |
| Boogiepop Phantom | January 5, 2000 | — | 12 |
| Boruto | April 5, 2017 | — | 293 |
| Bosco Adventure | October 6, 1986 | — | 26 |
| Botan Kamiina Fully Blossoms When Drunk | April 11, 2026 | — | 12 |
| Bottle Fairy | October 3, 2003 | — | 13 |
| Bottom-tier Character Tomozaki | January 8, 2021 | — | 25 |
| Bounty Dog | — | — | — |
| Boys Be... | April 11, 2000 | WOWOW | 13 |
| Boys Over Flowers | September 8, 1996 | TV Asahi, Asahi Broadcasting Group Holdings | 51 |
| Brain Powerd | April 8, 1998 | — | 26 |
| Brave Bang Bravern! | January 11, 2024 | — | 12 |
| Brave Beats | October 11, 2015 | — | 22 |
| Brave Command Dagwon | February 3, 1996 | — | 48 |
| Brave Command Dagwon: The Boy with Crystal Eyes | October 22, 1997 | — | — |
| Brave Exkaiser | February 3, 1990 | — | 48 |
| Brave Police J-Decker | February 5, 1994 | Nagoya Broadcasting Network | 48 |
| Brave Witches | October 5, 2016 | — | 12 |
| Breakers | January 7, 2020 | — | — |
| Bride of the Barrier Master | January 2027 | — | — |
| Brigadoon | July 21, 2000 | — | 26 |
| Broken Blade | April 6, 2014 | — | 12 |
| Broken Blade | May 29, 2010 | — | — |
| Brotherhood: Final Fantasy XV | March 30, 2016 | — | 5 |
| Brothers Conflict | July 2, 2013 | — | 12 |