Guido van der Valk
 Guido van der Valk (born 26 January 1980) is a Dutch professional golfer.After a successful amateur career which included representing his country at the Eisenhower Trophy van der Valk turned down several college offers to turn professional in 2002. He joined the Challenge Tour and finished 36th in the standings in his debut season the highlight being a second-place finish behind Iain Pyman at the BMW Russian Open. After two disappointing seasons he joined the Asian Tour in 2005.