Norborne is a city in southwest Carroll County, Missouri, United States. The population was 634 at the 2020 census. Norborne was founded in 1868 by Norborne B. Coates, a civil engineer for the railroad. The town has numerous small businesses but is mostly an agricultural community. Norborne is the self-proclaimed Soybean Capital of the World and holds a Soybean Festival every year during the weekend of the second Saturday in August.