Southwest Michigan Regional Airport (IATA: BEH, ICAO: KBEH, FAA LID: BEH) is a public use airport located two nautical miles (4 km) northeast of the central business district of Benton Harbor, a city in Berrien County, Michigan, United States. The airport is owned by the cities of Benton Harbor and St. Joseph, Michigan. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a regional general aviation facility.

The airport was named "Twin Cities Airport Ross Field" until mid-April 1993, when it was renamed with its current name; the "Ross Field" label was retained within the facility.