| 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 |
| 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 |
| 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 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 |
| Brothers Conflict | July 2, 2013 | — | 12 |
| Brynhildr in the Darkness | April 6, 2014 | — | 13 |
| Btooom! | October 4, 2012 | — | 12 |
| Bubblegum Crisis Tokyo 2040 | October 8, 1998 | — | — |
| Bubu Chacha | April 29, 1999 | NHK Satellite 2 Television | 52 |
| Bucchigiri?! | January 13, 2024 | — | 12 |
| Buddy Complex | December 29, 2013 | — | — |
| Buddy Daddies | January 7, 2023 | — | 12 |
| Bug tte Honey | October 3, 1986 | — | — |
| Build Divide | October 10, 2021 | — | 24 |
| Bullbuster | October 4, 2023 | — | 12 |
| Bumpety Boo | April 8, 1985 | NHK General TV | 130 |
| Bungo and Alchemist: Gears of Judgement | April 3, 2020 | — | 13 |
| Bungo Stray Dogs | April 7, 2016 | — | — |
| Bunny Drop | July 7, 2011 | Fuji Television | 11 |
| Burn-Up Excess | December 12, 1997 | DirecTV Japan | 13 |
| Burn-Up Scramble | January 12, 2004 | — | — |
| Burning Kabaddi | April 3, 2021 | TV Tokyo | 12 |
| Burst Angel | April 6, 2004 | Animax | 24 |
| Burst Ball Barrage!! Super B-Daman | January 4, 1999 | — | 18 |
| Buso Renkin | October 5, 2006 | TV Tokyo | 26 |
| Busou Shinki | October 4, 2012 | — | 13 |
| Butareba: The Story of a Man Turned into a Pig | October 8, 2023 | — | 12 |
| Butlers: Chitose Momotose Monogatari | April 12, 2018 | — | — |
| Butt Detective | May 3, 2018 | NHK Educational TV | — |
| Button Nose | October 19, 1985 | — | — |
| Buzzer Beater | February 5, 2005 | — | 26 |
| By the Grace of the Gods | October 4, 2020 | — | 24 |
| Bye Bye, Earth | July 12, 2024 | WOWOW | 20 |
| Bōken Korobokkuru | October 6, 1973 | Yomiuri Telecasting Corporation | 26 |
| Bōken Shōnen Shadar | September 18, 1967 | Nippon Television | — |
| Bōken Tairiku Ania Kingdom | April 2, 2023 | TV Tokyo | — |
| Bōkensha: The Man Was from Spain | November 28, 1992 | — | 26 |