Ravalli County Airport (FAA LID: HRF) is a public use airport in Ravalli County, Montana, United States. It is owned by Ravalli County and located one nautical mile (2 km) east of the central business district of Hamilton, Montana. This airport is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility.

Ravalli County Airport covers an area of 439 acres (178 ha) at an elevation of 3,636 feet (1,108 m) above mean sea level. It has one asphalt runway designated 17/35, measuring 5,200 by 75 feet (1,585 x 23 m).

For the 12-month period ending June 26, 2019, the airport had 23,600 aircraft operations, an average of approximately 64 per day: 92% general aviation and 8% air taxi. At that time there were 98 aircraft based at this airport: 80% single-engine, 9.2% multi-engine, 2% glider, 7% helicopter, and 2% jet.

Choice Aviation, the airport's fixed-base operator (FBO), offer fuel, flight instruction, aircraft/hangar rental, and other services including backcountry flights into the Selway Wilderness areas.

406 Airframes Inc. provides aircraft structural repair and modifications.

• List of airports in Montana

• Airport page at Ravalli County website
• Choice Aviation, the fixed-base operator (FBO)
• Aerial image as of July 1995 from USGS The National Map
• FAA Terminal Procedures for HRF, effective December 26, 2024
• Resources for this airport:
  • FAA airport information for HRF
  • AirNav airport information for HRF
  • FlightAware airport information and live flight tracker
  • SkyVector aeronautical chart for HRF