Kittson County is a county in the northwestern corner of the U.S. state of Minnesota along the Canada–US border, south of the Canadian province of Manitoba. As of the 2020 census, the population was 4,207. Its county seat is Hallock.

Hallock is a city in and the county seat of Kittson County, Minnesota, United States. The population was 906 at the 2020 census.