Giuliano Gemma (2 September 1938 – 1 October 2013) was an Italian actor. He is best known internationally for his work in Spaghetti Westerns, particularly for his performances as the title character in Duccio Tessari's A Pistol for Ringo (1965), Captain Montgomery Brown/'Ringo' in Tessari's The Return of Ringo (1965), the title character in Michele Lupo's Arizona Colt (1966), Scott Mary in Tonino Valerii's Day of Anger (1967) and Michael "California" Random in Lupo's California (1977).

Born in Rome, Gemma first worked as a stuntman, then was offered real acting parts by director Duccio Tessari, starting with the film Arrivano i titani (1962). He also made an appearance in Luchino Visconti's Il Gattopardo as Garibaldi's General. Gemma later went on to star in Spaghetti Westerns in films such as A Pistol for Ringo (Una pistola per Ringo), Blood for a Silver Dollar (Un dollaro bucato), Wanted and Day of Anger (I giorni dell'ira). He was sometimes credited as Montgomery Wood. Giuliano Gemma's career survived the demise of the genre, and he remained active on Italian television.