Luciano Vincenzoni (7 March 1926 – 22 September 2013) was an Italian screenwriter, known as the "script doctor". He wrote for some 65 movies between 1954 and 2000. He is known for his works in "For a Few Dollars More" (1965) and "The Good, the Bad and the Ugly" in 1966, but he also wrote for a number of other Spaghetti westerns.