| Official Name: | Korotoyak |
| Native Name: | Коротояк |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Altai Krai |
| Subdivision Type2: | County |
| Subdivision Type3: | District |
| Subdivision Name3: | Khabarsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 53.75°N 119°W[1] |
| Population Total: | 1090 |
Korotoyak (Russian: Коротояк) is a rural locality (a selo) and the administrative center of Korotoyaksky Selsoviet, Khabarsky District, Altai Krai, Russia. The population was 1,090 as of 2013.[2] It was founded in 1913. There are 12 streets.
Korotoyak is located 21 km northeast of Khabary (the district's administrative centre) by road. Tselinny is the nearest rural locality.[3]
As of 2013, the population of Korotoyak was 1,090.