Musashi Gundoh (MUSASHI -GUN道-, Musashi -Gandō-, Musashi - Way of the Gun-) is a Japanese anime television series, based on an unused story by Monkey Punch. It premiered in Japan on the satellite station BS-i on April 9, 2006, and was also set to be broadcast across Japan by the anime satellite television network Animax from October 2006. It is also legally distributed over the Internet by GyaO from May 13, 2006. According to the producer, there were originally plans to broadcast the anime overseas, but they were scrapped due to poor reception of the anime.

Produced on a low budget, the series has been infamous for poor animation, and has attracted a cult following for this reason. It uses uncropped live photos for backgrounds, and its sound effects are completely out of synch with the animation. It is also the directorial debut for animator Yūki Kinoshita, who previously worked as a technical animation director, storyboard artist and key animator.