Wilhelm "Willy" Simetsreiter (16 March 1915 – 17 July 2001), popularly known as Schimmy, was a German footballer.
A native of Munich, Simetsreiter played his career along the left wing for his club Bayern Munich.
He is usually considered the fastest-ever player at this position in the club's history.
He scored 3 goals against Luxembourg on 4 August at the 1936 Summer Olympics in Berlin.
At the time, the 21-year-old was one of the youngest players in the national side to score a hat-trick.
During the 1930s, Simetsreiter was capped a total of eight times by the German National Football Team.