| Zoids: Chaotic Century | September 4, 1999 | — | 67 |
| Zoids: Fuzors | October 3, 2004 | — | 26 |
| Zoids: Genesis | April 10, 2005 | TV Tokyo | 50 |
| Zoids: New Century | January 6, 2001 | — | 26 |
| Zokie of Planet Ruby | December 31, 2023 | Amazon Prime Video | 26 |
| Zom 100: Bucket List of the Dead | July 9, 2023 | — | 12 |
| Zombie College | 2000 | — | 12 |
| Zombie Hotel | January 2005 | BBC Children's and Education | 26 |
| Zombie Land Saga | October 4, 2018 | AT-X | 12 |
| Zombie-Loan | July 3, 2007 | TV Asahi | 13 |
| Zombies: Addison's Moonstone Mystery | October 16, 2020 | Disney Channel | 14 |
| ZOMBIES: The Re-Animated Series | June 28, 2024 | Disney Channel | 30 |
| Zoo Cup | June 17, 1994 | Canal+ | 52 |
| Zoo Olympics | 1992 | Canal+ | 52 |
| Zoobles! | May 18, 2011 | SBS TV | 26 |
| Zoom the White Dolphin | November 30, 1971 | ORTF Télévision 2 | 52 |
| Zoom the White Dolphin | August 30, 2015 | — | 104 |
| ZooPhobia | — | — | 1 |
| Zootopia+ | November 9, 2022 | Disney Channel, Disney+ | 6 |
| Zorro: Generation Z | March 16, 2006 | Telemundo, YTV | 26 |
| Zorro: The Chronicles | 2015 | — | 26 |
| Zou | August 20, 2012 | — | 156 |
| Zoé Kezako | 2004 | TF1 | 53 |
| Zukkoke Knight - Don De La Mancha | April 15, 1980 | — | 23 |
| Zumbers | — | — | — |
| Zuuzuu's Friends | — | — | — |
| ZuZu & the Supernuffs | — | — | — |
| Zuzubaland | May 25, 2018 | Boomerang, Cartoon Network, Sistema Brasileiro de Televisão, TV Cultura | 52 |
| ¡Mucha Lucha! | August 17, 2002 | The WB, Kids' WB | 52 |
| Æon Flux | September 1, 1991 | MTV | 16 |
| ÉX-Driver | July 25, 2000 | — | 6 |
| Übel Blatt | January 11, 2025 | — | 12 |
| Čarodějné pohádky | — | — | — |
| ĒlDLIVE | January 8, 2017 | — | 12 |
| Ōban Star-Racers | April 12, 2006 | France 3 | 26 |
| Ōgon Bat | April 1, 1967 | — | 52 |
| Ōkami Kakushi | January 7, 2010 | TBS Television | 12 |
| Ōoku: The Inner Chambers | June 29, 2023 | Netflix | 10 |
| Ōya-san to Boku | March 2, 2020 | NHK General TV | 15 |
| 侦探佳安 | October 26, 2023 | — | 418 |