Luis Mariano Delís Fournier (born December 6, 1957 in Guantánamo) is a retired Cuban athlete who competed in discus throw and shot put. Specializing in discus throw on the international scene, he won an Olympic bronze medal in 1980 as well as medals at the two first World Championships.
In 1990 he tested positive for banned substances and was disqualified from competition for two years. In light of the ban, Delís chose to retire from athletics. After retiring he became a coach, training 1992 Olympic champion Maritza Martén.