'Tough: High School Iron Fist Legend'), is a Japanese martial arts manga series written and illustrated by Tetsuya Saruwatari.

It was serialized in Shueisha's seinen manga magazine Weekly Young Jump from 1993 to 2003, with its chapters collected in 42 tankōbon volumes.

The martial art involves a combination of punches, kicks, throws, grappling, and knowledge of pressure points on the human body.

Written and illustrated by Tetsuya Saruwatari, Tough: High School Iron Fist Legend was serialized in Shueisha's seinen manga magazine Weekly Young Jump from 1993 to 2003.

[4] In North America, Viz Media released six volumes of the first manga series under its "Editor's Choice" imprint from January 4, 2005, to April 16, 2006.

[27] A video game based on the series titled Tough: Dark Fight was released for the PlayStation 2 console in Japan on December 1, 2005.