Marc Duez
 Duez at the 1999 24 Hours of Le Mans | |
| Personal information | |
|---|---|
| Nationality |  Belgian |
| Full name | Marc Charles Nicolas Duez |
| Born | 18 April 1957 Verviers, Belgium |
| World Rally Championship record | |
| Active years | 1983, 1986–1991, 1998–1999, 2014–2015, 2021 |
| Co-driver | Leon Lejeune Willy Lux Georges Biar Pierre Thimonier Alain Lopes Klaus Wicha Gilles Thimonier Luc Manset Philippe Dupuy Steven Vyncke Jacques Castelein |
| Teams | Austin Rover, Prodrive, Bastos Racing Team, RAS Sport, Toyota, Team Gamma, SEAT |
| Rallies | 28 |
| Championships | 0 |
| Rally wins | 0 |
| Podiums | 1 |
| Stage wins | 2 |
| Total points | 34 |
| First rally | 1983 Rallye de Portugal |
| Last rally | 2021 Ypres Rally Belgium |
Marc Charles Nicolas Duez (born 18 April 1957 in Verviers) is a Belgian racing and rally driver who last competed in the 2021 World Rally Championship.
Duesz won the 24 Hours of Nürburgring 4 times (1992, 1995, 1998 & 1999), the 24 Hours Spa three times (1997, 1998 & 2001) and the 24 Hours of Zolder two times (2000 & 2006).
Duez also has competed in the 24 Hours of Le Mans, scoring 4 class podiums, and the Andros Trophy.
For years now, Duez has been a representative for the RACB Archived 14 April 2012 at the Wayback Machine, the Royal Automobil Club of Belgium. He strongly promotes the Driver's Academy and the Belgian Racing Circuits.
Also since 2009, Duez has been racing for Fun Still Exists, also known as FSE. For this team, he has been racing the Legend Boucles de Spa 2010 and Ypres Historic Rally 2010, and also the Legend Boucles de Spa 2011.