Amur Oblast (/əˈmʊər ˈɒblæst/) is a federal subject of Russia (an oblast), located on the banks of the Amur and Zeya rivers in the Russian Far East. The oblast borders Heilongjiang province of the People's Republic of China (PRC) to the south.

The administrative center of the oblast, the city of Blagoveshchensk, is one of the oldest settlements in the far east of the country, founded in 1856. It is a traditional center of trade and gold mining. The territory is accessed by two railways: the Trans-Siberian Railway and the Baikal–Amur Mainline. As of the 2021 Census, the oblast's population was 766,912.

Amur Krai (Аму́рский край) or Priamurye (Приаму́рье 'Circum-Amur') were unofficial names for the Russian territories by the Amur River used in the late Russian Empire that approximately correspond to modern Amur Oblast.

Amur Oblast is located in the southeast of Russia, between the Stanovoy Range in the north and the Amur River in the south, and borders with the Sakha Republic in the north, Khabarovsk Krai and the Jewish Autonomous Oblast in the east, Heilongjiang of China in the south, and with Zabaykalsky Krai in the west. The Stanovoy Range forms the dividing line between the Sakha Republic and Amur Oblast and spreads across the oblast's entire northern border. The Amur–Zeya and Zeya–Bureya Plains cover about 40% of the oblast's territory, but the rest is hilly. Several mountain ranges rise to the south of the Stanovoy Range, including the Selemdzha Range parallel to it, as well as the Ezop, Yam-Alin and the Turan ranges stretching along the oblast's southeastern border with Khabarovsk Krai.

Many rivers flow through the oblast, especially in the north, accounting for 75% of the hydropower resources in the Russian Far East. Most of the oblast is in the Amur's drainage basin, although the rivers in the northwest drain into the Lena and the rivers in the northeast drain into the Uda. The longest rivers include the Amur, Bureya, Gilyuy, Nyukzha, Olyokma, Selemdzha, and Zeya. The Zeya begins in the mountains in the northeast, and its middle reaches are dammed to create the huge Zeya Reservoir, which sprawls over 2,400 square kilometers (930 sq mi).

Climate is temperate continental, with cold, dry winters and hot, rainy summers. Average January temperatures vary from −24 °C (−11 °F) in the south to −33 °C (−27 °F) in the north. Average July temperatures are +21 °C (70 °F) in the south and +18 °C (64 °F) in the north. Annual precipitation is about 850 mm (33 in).

Dwarf Siberian pine and alpine tundra grow at higher elevations and larch forests with small stands of flat-leaved birch and pine forests grow alongside the river plains. These larch and fir-spruce forests form the watershed of the Selemdzha River. The Bureya and Arkhara Rivers, southeast of the Selemdza, have the richest remaining forests in the oblast with Korean pine, Schisandra chinensis, Mongolian Oak, and other Manchurian flora. The Zeya–Bureya Plain, located between the Zeya, Amur, and Bureya Rivers, has the highest biodiversity in Amur Oblast. Much of this plain has been burned for agriculture, but large patches still remain. Japanese Daurian and Far Eastern western cranes nest here, as well as a host of other rare birds.

Amur Oblast has considerable reserves of many types of mineral resources; proven reserves are estimated to be worth US$400 billion. Among the most important are gold (the largest reserves in Russia), silver, titanium, molybdenum, tungsten, copper, and tin. There are also an estimated 70 billion tons of bituminous coal and lignite reserves. Probable iron deposits are estimated to be 3.8 billion tons. The Garin deposit is fully explored and known to contain 389 million tons of iron ore. Estimated reserves of the deposit are 1,293 million tons. The deposit's ore contains a low concentration of detrimental impurities; the ore contains 69.9% iron. Amur Oblast is also a promising source of titanium, with the Bolshoy Seyim deposit being the most important.