Wilhelm Jerzy Piec (née Pietz; 2 November 1915 – 4 April 1954) was a Polish footballer who played as a midfielder.
[2] Together with his older brother Ryszard Piec, they represented Naprzód Lipiny - a small team from a small hamlet of Lipiny, which never managed to qualify to the top division, but played a significant role in interwar Polish football.
He was called up for the 1938 FIFA World Cup, but did not travel with the team to France.
During the war, he continued playing in Naprzód, which was forced to change its name to TuS Lipine.
This biographical article related to a Polish association football midfielder is a stub.