The Zavolzhye Engine Factory (Russian: Заволжский моторный завод, romanized: Zavolzhskiy Motorniy Zavod, ZMZ) is a Russian automotive engine producer.

The plant was founded in April 1958 to provide GAZ with engines, in particular for its new GAZ-21 Volga.

[2] The factory's first product was a brand-new 2,445 cc (149.2 cu in) OHV engine.

[3] The first engine was assembled 4 November 1959; by December 1968, ZMZ had produced one million units.

It produces spare parts for many vehicles of Soviet origin, as well as for some Ford models.