Brunswick is a city in Chariton County, Missouri, United States. Its population was 801 at the 2020 census. Brunswick, by official state proclamation, is the Pecan Capital of Missouri. The Missouri Farmers Association was founded in Brunswick in 1914.

Chariton County is a county located in the north-central portion of the U.S. state of Missouri. As of the 2020 census, the population was 7,408. Its county seat is Keytesville. The county was organized November 16, 1820, from part of Howard County and is named for the Chariton River.