Czesław Sobieraj
Czesław Sobieraj (July 17, 1914 - July 25, 1985) was a Polish sprint canoeist who competed from the late 1930s to the late 1940s. He won a silver medal in the K-1 10000 m event at the 1938 ICF Canoe Sprint World Championships in Vaxholm. Sobieraj also competed at the 1948 Summer Olympics in London, finishing seventh in the K-1 10000 m event while being eliminated in the semifinals of the K-1 1000 m event.