The Angara () is a river, 1840 km (1150 miles) long, in Irkutsk Oblast and Krasnoyarsk Krai, south-east Siberia, Russia. It is the only river flowing out of Lake Baikal, and is a headwater of the Yenisei River.

After leaving the southwestern end of Lake Baikal near the settlement of Listvyanka, it flows north past the cities of Irkutsk and Bratsk, then turns west after receiving the Ilim River and flows into the Yenisei near Strelka.

Below its junction with the Ilim River the Angara is also known as the Upper Tunguska (). The Angara is navigable between Irkutsk and Bratsk; below Bratsk there are many rapids.

The river has a large hydroelectric capability and is one of the world's greatest sources of hydroelectric power. There is a cascade of four hydroelectric dams (listed in orographic sequence): Irkutskaya, Bratskaya, Ust-Ilimskaya, and Boguchanskaya (the construction of the latter one is in progress). The Bratskaya power plant is one of the largest in the world (ca. 4,500 MW), and the corresponding Bratsk Reservoir is the largest artificial lake in the world. The Irkutskaya power plant has a power of 660 MW.

Rivers of Russia

Ангара | Angara | Angara | Angara | Angara | Angara | 앙가라 강 | Angara | אנגרה (נהר) | Angara | Angara | Angara | アンガラ川 | Angara | Ангара (река) | Ангара | Angara | Ангара