Duncan Huisman (born 11 November 1971 in Doornspijk, Gelderland) is a Dutch racing driver. He won the Guia Race four times and the 24 Hours of Nürburgring in 2005. He claimed three titles at the Dutch Touring Car Championship in 1997, 2000 and 2002, and resulted runner-up at the 2010 and 2011 Dutch GT4 Championship. He has also competed in the FIA GT Championship and the Porsche Supercup. His older brother Patrick is also a successful racing driver.