The Smolensk Aviation Plant (SmAZ) is a Russian aircraft production and servicing company.

Until 1966, it was known as "Plant #475" of the NKAP (Narodny Kommissariat Aviatsionnoy Promyshlennosti, People's Commissariat for Aviation Industry).

It was renamed again in 1967 as the "Smolensk Machine Building Plant" of MAP (Ministerstvo Aviatsionnoy Promyshlennosti, Ministry for the Aviation Industry).

During the 1980s production at Smolensk included the Myasishchev-designed high-altitude M-55 Geofizika aircraft, cruise missiles like the Kh-55 Granat and parts for the Buran space shuttle.

The company continues to work on the development of small aircraft and ensuring the state defense order.