Hendrik ("Henk") Timmer (; 8 February 1904 – 13 November 1998) was a Dutch sportsman, who primarily played tennis. Born in Utrecht, Timmer also won golf tournaments, became Dutch squash champion, played badminton and hockey. He died aged 94 in Bilthoven, four days before his former doubles partner Kea Bouman. Apart from being a Dutch tennis champion, he was Swiss, Welsh and Scottish indoors champion as well. Tennis career He began his tennis career at the age of 19 when he won his first Dutch national championships. He scored his first international victory over Donald Greig in a mixed international team match between the Netherlands and Great Britain in 1923. The next year he drew international attention when he was featured in the championship match for the Swiss covered courts title in St. Moritz defeating the Hungarian champion Béla von Kehrling in five sets. At the 1924 Paris Olympics he won a bronze medal in the tennis' mixed doubles event, partnering Kea Bouman. He entered the inaugural British Hard Court Championships making it to the quarterfinal stage. He reached the quarterfinal of the Wimbledon Championships in 1927 and 1929. In both years he lost to Frenchman, and eventual winner, Henri Cochet. In 1927 he was barely recovered from a broken leg, which he suffered four-month prior to the tournament and thus lost in five sets, after winning the first two sets, and in 1929 in three straight sets. He was a 9 times national tennis champion of Netherlands having two four-years streak between 1927–30 and 1932–35. He also won eight national doubles title and five mixed doubles titles as well. In 1926 he was the mixed doubles challenger for the international edition of the Dutch championships pairing with Irma Kallmeyer, but was overcome by the couple of Julie Stroink-Cords and De Beer. In 1929 he was a finalist of the Dutch international championships with his partner Wilbur Coen losing to the American champions Bill Tilden and Frank Hunter. In the same tournament Timmer reached the semifinal where he was eliminated by Hunter in three sets. Next year he faced Tilden again in an unsuccessful doubles final rematch; that time Timmer teamed with compatriot Arthur Diemer Kool, while Tilden chose Daniel Prenn. He also lost the mixed doubles final with Else Støckel to Roderich Menzel and Margaretha Dros-Canters. A week later he met Menzel again for the singles trophy of the