| Yaiba | |
 First tankōbon volume cover, featuring Yaiba Kurogane (left) and Sayaka Mine | |
| Manga | |
| Written by | Gosho Aoyama |
|---|---|
| Published by | Shogakukan |
| English publisher | |
| Imprint | Shōnen Sunday Comics |
| Magazine | Weekly Shōnen Sunday |
| Demographic | Shōnen |
| Original run | September 7, 1988 – December 1, 1993 |
| Volumes | 24 |
| Anime television series | |
| Kenyū Densetsu Yaiba | |
| Directed by |
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| Produced by |
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| Written by | Kenji Terada |
| Music by | Kohei Tanaka |
| Studio | Pastel |
| Original network | TXN (TV Tokyo, TVh) |
| Original run | April 9, 1993 – April 1, 1994 |
| Episodes | 52 |
| Anime television series | |
| Yaiba: Samurai Legend | |
| Directed by | Takahiro Hasui |
| Produced by | Maiko Okada |
| Written by | Touko Machida |
| Music by |
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| Studio | Wit Studio |
| Licensed by |
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Yaiba (stylized as Y∀IBA) is a Japanese manga series written and illustrated by Gosho Aoyama. It was serialized in Shogakukan's shōnen manga magazine Weekly Shōnen Sunday from September 1988 to December 1993, with its chapters collected in 24 tankōbon volumes. The manga has been licensed for English release in North America by Viz Media.
The story follows Yaiba Kurogane, a samurai boy raised in the forest by his father who ends up returning to city life in Japan. Yaiba encounters a rival swordsman, Takeshi Onimaru, but when the battle just so happens to end in a stalemate, a humiliated Onimaru is lured into malevolence upon stumbling across a magical katana, culminating in his plans to take over the world with an army of demons. This forces Yaiba and his allies to go on a quest to defeat the newly transformed demon lord, while also encountering several figures from Japanese history and mythology along the way.
A 52-episode anime television series adaptation by Pastel, titled Kenyū Densetsu Yaiba, aired on TV Tokyo and Television Hokkaido from April 1993 to April 1994. A second anime television series adaptation produced by Wit Studio, titled Yaiba: Samurai Legend, has been announced. The second anime television series adaptation has been licensed by Viz Media.
By May 2024, the manga had over 17 million copies in circulation. In 1993, Yaiba received the 38th Shogakukan Manga Award for the shōnen category.