Prefectural Earth Defense Force is a Japanese manga series by Kōichirō Yasunaga which ran in Shōnen Sunday Zōkan beginning in 1983. The manga was written as a parody gag manga inspired by the tokusatsu series Ultraseven. An anime OVA based on the manga was released in 1986. The anime was released on DVD in North America by ADV Films on April 18, 2006.

Shōnen Sunday S , formerly known as Shōnen Sunday Super, is a monthly shōnen manga magazine published by Shogakukan in Japan.