Walenty Musielak (7 February 1913 – 11 April 1977) was a Polish soccer player, who represented HCP Poznan in the 1930s.
He was born in Buchwald, German Empire.
Musielak was capped once for the national team of Poland, during the 1936 Olympic Games in Berlin, in the Austria - Poland 3-1 game, which took place on 11 August 1936.
In 1938 Musielak moved to Skarzysko-Kamienna, to play for the local team Granat Skarzysko-Kamienna.