Hot Springs County–Thermopolis Municipal Airport (IATA: THP, ICAO: KHSG) is a general aviation airport 10 miles northwest of Thermopolis, Wyoming. The airport was opened in 2015 to replace the original Thermopolis Municipal Airport, which was in the city of Thermopolis, but was unsuitable to expansion. This airport has been discontinued since and now serves as part of the Thermopolis Golf Course.

In the year ending June 30, 2021, the airport had 2,702 aircraft operations, average 52 per week: 94% general aviation, 6% air taxi and <1% military. 10 aircraft at the time were based at the airport: 9 single-engine and 1 multi-engine.