Monkey Turn (モンキーターン) is a shōnen manga by Katsutoshi Kawai. The manga was serialized in Shōnen Sunday. The manga spawned two anime series, "Monkey Turn" and "Monkey Turn V". The series won the Shogakukan Manga Award in the shōnen category in 2000.
The series follows Kenji Hatano, a young man who sets out to master conquer the world of kyōtei (hydroplane racing). Over the course of the series he develops a serious rivalry with fellow racer Hiro Doguchi.
