Lac du Bonnet (French: Lac-du-Bonnet) is a provincial electoral division in the Canadian province of Manitoba.

Lac du Bonnet is bordered to the west by Red River North and Dawson Trail, to the south by La Verendrye, to the north by Keewatinook and to the east by the Ontario border.

Communities in the riding include Lac Du Bonnet, Pinawa, Beausejour (known as the birthplace of Edward Schreyer), Whitemouth, Tyndall, Hadashville, Ste.

There are a number of diverse economic communities in the riding, including farming, forestry and nuclear research.

Eighteen per cent of the riding's residents are aboriginal, along with 9% German and 6% Ukrainian.