Johannes Adrianus Janssen, known as Jan Janssen (born 19 May 1940, Nootdorp) is a Dutch former professional cyclist (1962-1973).
He was world champion and winner of the Tour de France and the Vuelta a España. He was the first Dutch rider to win the Tour
de France. Janssen was born at Nootdorp, a small town near Rotterdam and Delft. He later moved to Putte, a village on the
Belgian border between Roosendaal and Antwerp. He rode the Tour de France eight times and finished all but the first time.