Johannes Cornelis "Hans" Tetzner (9 June 1898 – 17 February 1987) was a Dutch association football defender and medical doctor. He was part of the Dutch team that finished fourth at the 1924 Summer Olympics.^[1] Between 1915 and 1926 he played for Be Quick 1887, winning nine Northern Dutch titles and one national title in 1920.^[2]

Hans Tetzner had an elder brother Max; they competed alongside both in football and speed skating. Hans also played tennis, once reaching the semifinals of the Dutch national doubles championships. He later became a prominent surgeon and served as a doctor for the football club AFC Ajax and for the 1936 Dutch Olympic cycling team. In the 1960s he was a regular guest at the television show Wie van de Drie?^[2]