Beaver Municipal Airport (FAA LID: K44) is a city-owned, public-use airport located one mile (2 km) southwest of the central business district of Beaver, a city in Beaver County, Oklahoma, United States.

[1] Beaver Municipal Airport covers an area of 252 acres (102 ha) and contains two runways.

Runway 4/22 has a turf surface measuring 2,000 by 130 feet (610 by 40 m).

For the 12-month period ending July 10, 2023, the airport had 1,200 general aviation aircraft operations, an average of 23 per week.

At that time, there were three aircraft based at this airport: three single-engine.