Wain Wath Force is a waterfall situated on the River Swale in the Yorkshire Dales National Park, North Yorkshire, England. The falls are located one kilometre upstream from the hamlet of Keld which has three other waterfalls around it, Kisdon Force, East Gill Force and Catrake Force. The falls in the north of England are often called Forces, after the Norse word Foss for waterfall.

Its name derives from the ford above the fall, wath being the Anglo-Saxon word for a ford. Wain may denote that it was passable for a cart or wain.

Wain Wath Force is not a substantial falls; it has a drop of only around 1.5 metres as the river flows beneath the limestone cliffs of Cotterby Scar.