- Orsk is a city located in the Orenburg Oblast region of Russia. It is situated on the banks of the Ural River, near the border with Kazakhstan. Orsk has a population of approximately 240,000 people. The city is known for its industrial sector, particularly in the fields of metallurgy and machinery. Orsk is also a major transportation hub, with a railway station and several highways connecting it to other cities in Russia and Kazakhstan. The city has a rich history and is home to several historical and cultural landmarks, including the Orsk Fortress and the Museum of Local Lore.