The 2011 Cheltenham Gold Cup was a horse race which took place at Cheltenham on Friday March 18, 2011. It was the 83rd running of the Cheltenham Gold Cup, and it was won by the pre-race favourite Long Run who beat three previous winners of the Gold Cup in Kauto Star, Denman and defending champion Imperial Commander. Long Run was ridden by Mr Sam Waley-Cohen and trained by Nicky Henderson. Waley-Cohen became the first amateur jockey to win the Cheltenham Gold Cup since Jim Wilson on Little Owl in 1981 while Long Run was the first six-year-old to win the race since Mill House in 1963.