Southwest Wyoming Regional Airport (IATA: RKS, ICAO: KRKS, FAA LID: RKS) is eight miles east of Rock Springs, in Sweetwater County, Wyoming, United States.

The airport's commercial terminal opened in 1978; plans are underway to expand and renovate it.[when?]

All facilities are owned by the City of Rock Springs and operated by the Airport Board.

In December 2017, it became the first airport in Wyoming to use a renewable energy power source for part of its electrical demand.

In 2018 the airport had 16,674 aircraft operations, average 46 per day: 72.2% general aviation, 27.3% air taxi, and <1% military.