The Regional Airline Association (RAA) is a business association founded in 1975 that represents 17 North American regional airlines and 280 associate, non-airline members. This includes manufacturers of products and services supporting the regional airline industry. The RAA is the collective bargaining voice for its members' interests and lobbies on their behalf before the United States Congress, Department of Transportation, Federal Aviation Administration and other federal agencies. The RAA represents the financial and economic interests of regional airline employers and regional airline support industry employers. The Regional Airline Association does not represent financial or economic interest of airline employees, either union or other. The RAA is headquartered in Washington, D.C.

A regional airline is a general classification of airline which typically operates scheduled passenger air service, using regional aircraft, between communities lacking sufficient demand or infrastructure to attract mainline flights. In North America, most regional airlines are classified as "fee-for-departure" carriers, operating their revenue flights as codeshare services contracted by one or more major airline partners. A number of regional airlines, particularly during the 1960s and 1970s, were classified as commuter airlines in the Official Airline Guide (OAG).