Campbell is a city in northern Dunklin County, Missouri, United States. The population was 1,992 at the 2010 census.

Dunklin County is located in the Bootheel of the U.S. state of Missouri. As of the 2020 census, the population was 28,283. The largest city and county seat is Kennett. The county was officially organized on February 14, 1845, and is named in honor of Daniel Dunklin, a Governor of Missouri who died the year before the county was organized.