Yaroslavl Motor Plant
| YaMZ Headquarters in Yaroslavl, Yaroslavl Oblast | |
| ЯМЗ, YaMZ | |
| Native name | Яросла́вский мото́рный заво́д | 
| Industry | Automotive | 
| Founded | 1916 | 
| Founder | V.A. Lebedev | 
| Headquarters | , | 
| Key people | Matyushin Andrey - General Director of Yaroslavl Motor Plant | 
| Products | Engines, transmissions | 
| Revenue | 440,800,000,000 Russian ruble (1994) | 
| Website | www | 
OJSC «Autodiesel» (ОАО «Автоди́зель») known as the Yaroslavl Motor Plant (YaMZ), Russian: Яросла́вский мото́рный заво́д (ЯМЗ), romanized: Yaroslavskyi Motornyi Zavod (YaMZ), based in Yaroslavl, Russia, is an open joint-stock company that produces engines for many Russian companies.