Fons van Katwijk
Alphonsus Wilhelmus Franciscus "Fons" van Katwijk is a retired Dutch cyclist who was active between 1971 and 1987. He competed at the 1976 Summer Olympics and finished in 17th place in the 100 km team time trial. He won the Flèche du Sud and individual stages of the Olympia's Tour, Vuelta a España, Étoile de Bessèges and Ronde van Nederland.
His brothers Piet and Jan, nephew Alain and daughter Nathalie were also professional cyclists.
