| Official Name: | Katun |
| Native Name: | Катунь |
| Settlement Type: | Settlement |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Altaysky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 51.9°N 136°W[1] |
Katun (Russian: Катунь) is a rural locality (a settlement) in Aysky Selsoviet, Altaysky District, Altai Krai, Russia. The population was 272 as of 2013.[2] There are 11 streets.
Katun is located on the Katun River, 48 km east of Altayskoye (the district's administrative centre) by road. Rybalka is the nearest rural locality.[3]