Ust-Katun (Russian: Усть-Катунь) is a rural locality (a settlement) in Biysky District, Altai Krai, Russia.

Ust-Katun is located 13 km southwest of Biysk (the district's administrative centre) by road.

Biysk is the nearest rural locality.

[3] The highest altitude is 171 meters ( 561 ft. ) and it has a humid continental climate.

This Biysky District location article is a stub.