Demi de Jong (born 11 February 1995) is a Dutch former road cyclist. As a junior, de Jong won the bronze medal in the women's junior time trial at the 2012 UCI Road World Championships. She started her professional career in 2014 at . In her last season she rode for UCI Women's Continental Team , but ended her career due to a knee injury. She is the younger sister of the 2016 Cyclo-cross World Champion, Thalita de Jong.
