Yumaguzino reservoir, reservoir in Russia

Yumaguzino reservoir is an artificial water basin in Russia built to store water and support hydroelectric operations. The body of water covers a considerable area and is surrounded by natural woodland and open terrain typical of the region.

Construction of the Yumaguzino reservoir on the Belaya River in Kugarchinsky District began in December 1998, despite repeated criticism from environmental organisations. Filling started in spring 2004, when the May flood brought an inflow of up to 600 cubic metres per second and about 140 million cubic metres of water. That volume sustained river levels for southern Bashkortostan's water intakes and started the first of the plant's three units.

The dam is 605 m long and 65 m high, with a surface spillway at its right-bank abutment. The reservoir's water level can differ by up to 63 m between the upper and lower pools. The dam lies in Kugarchinsky District; the nearest settlement is Yumaguzino.