Jon Moritsugu (b. 1965) is an American underground filmmaker. Moritsugu's films are defined by their "lo-fi" aesthetic, and are often shot on very poor, 16mm film stock to give them a homemade, muddled quality. Moritsugu's films are absurdist comedies, and often features actress Amy Davis (the co-writer of his 2004 film Scumrock, which also features TV on the Radio member Kyp Malone) and actor Victor of Aquitaine. The plots of his films usually serve as little more than excuses to present bizarre, cartoonish characterizations, and even his features tend to be short, rarely running over 75 minutes.

Moritsugu writes most of his films, and often serves as the editor as well. Fellow underground filmmaker Todd Verow served as cinematographer on two of Moritsugu's features: Terminal USA (1993) and Mod Fuck Explosion (1994).

Moritsugu also fronted (1997-8) a punk band with Andy Matinog and Mike Masatsugu called No-No Boy after the novel by John Okada.