Ronald S. Barak (born June 7, 1943) is an American gymnast. At the 1961 Maccabiah Games he won eight gold medals, one silver medal, and one bronze medal. At the 1964 NCAA Men's Gymnastics Championships he won the all-around competition, the horizontal bars, and the parallel bars, and at the 1964 Amateur Athletic Union (AAU) National Gymnastics Competition he was the champion in the horizontal bars. He competed in eight events at the 1964 Summer Olympics.