The Whitesand River[1] is a tributary of the Assiniboine River and finds its headwaters at Whitesand Lake[2][3] near Invermay in east-central Saskatchewan.

Its mouth can be found at its confluence with the Assiniboine River near Kamsack.

274 along Highway 9, about 12 kilometres (7.5 mi) south of Canora, and just north of where the Wallace Creek joins the Whitesand River.

[7][8] Whitesand Regional Park, which is part of Saskatchewan's Regional Park system, is located just off the Yellowhead Highway at Theodore[9] on the shore of Theodore Reservoir.

Fishing commonly found in the river include northern pike and carp.