Omsktransmash - also known as "Омский завод транспортного машиностроения" (English: Omsk transport machine factory) - is a wholly state-owned engineering company (GUP) based in the city of Omsk, Russia. The company was best known in the West during the Cold War period for its production of armoured vehicles such as the T-80 tank. The design bureau of the company, KBTM, was also responsible for the BTR-T, TOS-1 and 2S19 "Msta-S".