Thunder Warrior III () is a 1988 Italian action film written and directed by Fabrizio De Angelis (credited as Larry Ludman). It is the sequel to the 1987 film Thunder Warrior II, and the last film in the Thunder film series.
On an Indian reservation, the ex-military Magnum illegally sets up a training camp for mercenaries. After they destroy the Indian village, Thunder protests demanding justice from the authorities, but to no avail.
Thunder Warrior III was distributed on home video as Thunder Warrior 3 by American Imperial in the United Kingdom in August 1989.