| Big Mouth | September 29, 2017 | Netflix | 81 |
| Big Nate | February 17, 2022 | Paramount+ | 52 |
| Big Order | April 16, 2016 | — | 10 |
| Big Tree City | August 1, 2022 | Netflix | 15 |
| Big Windup! | April 12, 2007 | TBS Television | — |
| Big X | August 3, 1964 | — | 59 |
| Big-Headed Kid and Small-Headed Father | 1995 | China Central Television | 156 |
| Bijukubo | July 9, 2010 | — | 2 |
| Biker Mice from Mars | September 18, 1993 | Fox Broadcasting Company, Broadcast syndication | 65 |
| Biker Mice from Mars | August 26, 2006 | CITV | 28 |
| Bikkuriman | May 17, 1992 | — | — |
| Bikkuriman 2000 | November 1, 1999 | TV Tokyo | 68 |
| Bill & Ted's Excellent Adventures | September 15, 1990 | CBS | 21 |
| Billy Dilley's Super-Duper Subterranean Summer | June 3, 2017 | Disney XD | 13 |
| Billy the Cat | September 5, 1996 | Canal+ | 52 |
| Billy the Krill | September 25, 2017 | National Television 5 | 4 |
| Binan Kōkō Chikyū Bōei-bu Haikara! | July 7, 2025 | — | — |
| Binbō Shimai Monogatari | June 29, 2006 | — | 10 |
| Bing | June 9, 2014 | CBeebies | 105 |
| Bionic Max | — | Canal J | 52 |
| Bionic Six | April 19, 1987 | — | 65 |
| Birdgirl | April 5, 2021 | Adult Swim | 12 |
| Birdie Wing: Golf Girls' Story | April 6, 2022 | — | — |
| Birdman and the Galaxy Trio | September 9, 1967 | NBC | 20 |
| Birdy the Mighty | July 25, 1996 | — | 4 |
| Birdy the Mighty: Decode | July 5, 2008 | — | 25 |
| Birdz | October 3, 1998 | CBS | 13 |
| Bismark | October 7, 1984 | — | 51 |
| Bitcoin Brigade: Adventures in Satoshi City | 2026 | — | — |
| Bite Me! Chameleon | August 16, 1992 | — | 6 |
| Bite-Choicar | — | Seoul Broadcasting System | 52 |
| Bitz & Bob | March 12, 2018 | — | 20 |
| Bizim Diyar | — | — | — |
| Black Blood Brothers | September 8, 2006 | — | 12 |
| Black Bullet | April 8, 2014 | — | 13 |
| Black Butler | October 3, 2008 | MBS | 70 |
| Black Cat | October 6, 2005 | — | 23 |
| Black Cat Detective | 1984 | China Central Television | 5 |
| Black Channel | — | — | — |
| Black Clover | October 3, 2017 | Cartoon Network, TX Network | 170 |
| Black Dynamite | July 15, 2012 | Cartoon Network | 20 |
| Black Heaven | July 8, 1999 | WOWOW | 13 |
| Black Jack | October 11, 2004 | — | 61 |
| Black Jack | December 21, 1993 | — | 12 |
| Black Jack 21 | April 10, 2006 | — | 17 |
| Black Lagoon | April 8, 2006 | — | 29 |
| Black Panther | January 16, 2010 | ABC Entertains | 12 |
| Black Rock Shooter | February 2, 2012 | — | 8 |
| Black Rock Shooter: Dawn Fall | April 3, 2022 | — | 9 |
| Black Rubber Shoes | — | — | — |
| Black Summoner | July 9, 2022 | — | 12 |
| Black Torch | July 4, 2026 | — | 12 |
| Blackstar | September 12, 1981 | CBS | 13 |
| Blade | July 1, 2011 | Animax | 12 |
| Blade & Soul | April 3, 2014 | — | 13 |
| Blade of the Immortal | October 10, 2019 | — | 24 |
| Blade of the Immortal | July 14, 2008 | AT-X | 13 |
| Blade Runner: Black Lotus | — | — | — |
| Bladedance of Elementalers | July 14, 2014 | — | 12 |
| Blades of the Guardians | June 1, 2023 | — | — |