Sultan Kudarat, officially the Municipality of Sultan Kudarat, is a 1st class municipality of the province of Maguindanao del Norte, Philippines. At the 2020 census it had a population of 105,121.

Maguindanao was a province of the Philippines located in the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM). From 2014 to 2022, its provincial capital was Buluan, but the legislative branch of government, the Maguindanao Provincial Board, convened at the old provincial capitol in Sultan Kudarat. It bordered Lanao del Sur to the north, Cotabato to the east, Sultan Kudarat to the south, and Illana Bay to the west.