The 2017 UCI Mountain Bike World Cup was a series of races in Olympic Cross-Country (XCO), Cross-Country Eliminator (XCE), and Downhill (DHI). Each discipline had an Elite Men and an Elite Women category. There were also men's and women's under-23 categories in the XCO and junior men's and women's categories in the DHI. The cross-country series had six rounds and the downhill series had seven rounds. The Junior Women's Downhill category was included as a World Cup discipline for the first time in 2017.