| Wild Arms: Twilight Venom | October 18, 1999 | WOWOW | 22 |
| Wild Knights Gulkeeva | April 4, 1995 | — | 26 |
| Wolf's Rain | January 6, 2003 | Fuji Television | 30 |
| Xam'd: Lost Memories | July 15, 2008 | — | 26 |
| Yona of the Dawn | October 7, 2014 | — | 24 |
| Ys | November 21, 1989 | — | 7 |
| Yu-Gi-Oh! Capsule Monsters | September 9, 2006 | — | 12 |
| Yu-Gi-Oh! Duel Monsters | April 18, 2000 | TV Tokyo | 224 |
| Yu-Gi-Oh! Go Rush!! | April 3, 2022 | TV Tokyo | — |
| Yu-Gi-Oh! GX | October 6, 2004 | TV Tokyo | 180 |
| Yōkai Ningen Bem | October 7, 1968 | Fuji Television | — |
| Yōtōden | — | — | — |
| Z.O.E. Dolores,i | April 7, 2001 | — | 26 |
| Zatch Bell! | April 6, 2003 | — | 150 |
| Zatsu Tabi: That's Journey | April 7, 2025 | — | 12 |
| Zillion | April 12, 1987 | — | — |
| 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 |
| Übel Blatt | January 11, 2025 | — | 12 |