| Official Name: | Nikolsk |
| Native Name: | Никольск |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Zmeinogorsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 51.35°N 135°W[1] |
Nikolsk (Russian: Никольск) is a rural locality (a selo) and the administrative center of Nikolsky Selsoviet, Zmeinogorsky District, Altai Krai, Russia. The population was 280 as of 2013.[2] There are 7 streets.
Nikolsk is located 35 km northwest of Zmeinogorsk (the district's administrative centre) by road. Kuzminka is the nearest rural locality.[3]