Helena Regional Airport (IATA: HLN, ICAO: KHLN, FAA LID: HLN) is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana, United States. It is owned by the Helena Regional Airport Authority.

The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport (more than 10,000 enplanements per year). Federal Aviation Administration records say the airport had 82,673 passenger boardings (enplanements) in calendar year 2022, 82,673 in 2022.