Leontien Martha Henrica Petronella Zijlaard-van Moorsel (born 22 March 1970 in Boekel, Netherlands) is a former Dutch racing cyclist. Van Moorsel started her career in the late 1980s and was soon one of the best cyclists in the world. She won major races both on the track, and on the road. In the first half of the 1990s, she won the Tour Féminin twice, after fierce competition with Jeannie Longo. Van Moorsel dropped out of cycling in 1994 with anorexia nervosa but recovered to compete at the world championships in 1998, winning the time trial and coming second in the road race.