Jakko Jan Leeuwangh, Dutch speed skater
Jakko Jan Leeuwangh (born 9 September 1972) is a former speed skater from the Netherlands. He finished fourth in the 1998 Olympic 1000 m event. In January 2000 he broke the 1500 m world record in Calgary, Canada, holding the record until it was broken by Lee Kyou-hyuk in March 2001.