The Onega Tractor Plant or Onezhskiy Tractor Plant (, abbreviated , OTZ) is a major Russian machine-building manufacturing plant in Petrozavodsk, Karelia, Russia.
The plant was established on August 29, 1703. The first tractor, tracked skidder the TDT-40 model, was manufactured on 1956. The Onega Tractor Plant (OTZ) is a company in Russia that manufactures and markets a range of forestry vehicles and machinery such as forwarders and harvesters.
The company produces tracked all-terrain vehicles with amphibious, tractors tracked and skidders, forwarders, harvesters.