Robert Pražák (2 December 1892 – 16 May 1966) was a Czech gymnast who competed for Czechoslovakia in the 1920 Summer Olympics and in the 1924 Summer Olympics. He was born and died in Plzeň. In 1920 he was a member of the Czechoslovak gymnastic team which finished fourth in the team event. Four years later he won three silver medals in the individual all-around event, in the parallel bars competition, and in the rings event. At the 1924 Summer Olympics he also participated in the following events: