Wilhelmus Frederikus ("Willem") Winkelman (14 July 1887 – 1 July 1990) was a Dutch track and field athlete who competed in the 1908 Summer Olympics.
He was born in Delfshaven and died in Voorburg.
[1] In 1908, he was eliminated in the first round of the 3500 metre walk competition as well as of the 10 mile walk event.
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