Christophe Dupouey was a French mountain biker. In 1996 he won the gold medal in the men's cross country section of the UCI Mountain Bike World Cup. In 1998 he won the gold medal in the same section of the UCI Mountain Bike & Trials World Championships. Dupouey also competed in the 1996 and 2000 Olympic Games, placing 4th in Atlanta.

In 2006 he was given a suspended three-month prison sentence for participating in a trafficking network for "pot belge", a mix of cocaine, caffeine, pain killers, sometimes amphetamines and heroin.

In 2009 he committed suicide on 4 February, at the age of 40.