Ordsall Chord, also known as the Castlefield Curve, is a short railway line in Ordsall, Salford, England, which links Manchester Piccadilly and Manchester Oxford Road to Manchester Victoria, designed to increase capacity and reduce journey times into and through Manchester. It allows trains to run from Leeds, Newcastle and Redcar Central direct to Manchester Airport.

Ordsall is an inner city suburb of Salford, Greater Manchester, England. The population at the 2011 census was 14,194. It lies chiefly to the south of the A57 road, close to the River Irwell, the main boundary with the city of Manchester, Salford Quays and Manchester Ship Canal, which divides it from Stretford.