Rudolf Sloup known as Štapl (17 November 1895 – 7 September 1936) was a former Czechoslovak footballer.
He played 8 games and scored 8 goals for the Czechoslovakia national football team.
He represented Czechoslovakia at the 1924 Olympics.
He was also a player-coach of Yugoslav side Hajduk Split in 1920.His younger brother Josef was also a footballer.