South County may refer to the following:
Counties in the United States South County (Rhode Island), a vernacular name for Washington County, Rhode Island South County (Massachusetts), a region of Massachusetts South County, a name for the southern part of St. Louis County, Missouri used by residents of the Greater St. Louis area South County, a cultural and geographical area of Orange County, California South County, a name for the southern portion of Santa Clara County in California
See also South County Airport, an airport in Santa Clara County, California South County Center, a shopping mall in Mehlville, Missouri South Dublin (UK Parliament constituency), a county constituency in Ireland from 1885 to 1922 South County Secondary School, a school in Lorton, Virginia