Tswaing Municipality (Tswana: Mmasepala wa Tswaing) is a local municipality within the Ngaka Modiri Molema District Municipality, in the North West province of South Africa.

It consists of the towns of Delareyville, Sannieshof and Ottosdal.

The 2011 census divided the municipality into the following main places:[4] The municipal council consists of twenty-eight members elected by mixed-member proportional representation.

Fourteen councillors are elected by first-past-the-post voting in fourteen wards, while the remaining fourteen are chosen from party lists so that the total number of party representatives is proportional to the number of votes received.

In the election of 1 November 2021 the African National Congress (ANC) won a majority of nineteen seats on the council.