Mathieu van der Poel (born 19 January 1995) is a Dutch cyclist, who currently competes in the cyclo-cross, mountain bike racing and road bicycle racing disciplines of the sport for the Corendon–Circus team. He is best known for winning the Cyclo-cross World Championships, in Tábor, Czech Republic in 2015, the Junior Road Race World Championships in Florence, Italy in 2013, and twice winning the Junior Cyclo-cross World Championships, in Koksijde, Belgium in 2012, and Louisville, USA in 2013; the first rider to win multiple titles at that level. As well as this, Van der Poel was the winner of the 2018 Dutch National Road Race Championships in Hoogerheide.
Born in Kapellen – located in the Antwerp province of Belgium – Van der Poel comes from a family of professional cyclists; his brother David is also prominent in cyclo-cross racing, winning the 2013 national under-23 championships in Hilvarenbeek. His father, Adri, was a six-time national champion and won the world title in 1996; he was also a two-time stage winner at the Tour de France and a winner of several Classics during his career. His maternal grandfather Raymond Poulidor, a French cyclist, was a Grand Tour winner at the 1964 Vuelta a España and finished the Tour de France in a runner-up position three times during his career.