The Kasmala (Russian: Касмала) is a river in Altai Krai, Russia.

[1] The basin of the river is located in the Rebrikhinsky and Pavlovsky districts.

It has its sources in lake Seleznevo-Borovskoye, located 30 km (19 mi) northeast of lake Bolshoye Ostrovnoye in a swampy area of the Ob Plateau.

The river flows in a roughly northeastern direction within one of the wide ravines of glacial origin that cut diagonally across the plateau.

[2][3] The longest tributary of the Kasmala is the 32 km (20 mi) long Borovlyanka (Боровлянка) on the left.