| Official Name: | Novonikolayevka |
| Native Name: | Новониколаевка |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Rubtsovsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 51.35°N 109°W[1] |
Novonikolayevka (Russian: Новониколаевка) is a rural locality (a selo) and the administrative center of Novonikolayevsky Selsoviet, Rubtsovsky District, Altai Krai, Russia. The population was 887 as of 2013.[2] There are 13 streets.
Novonikolayevka is located 34 km southeast of Rubtsovsk (the district's administrative centre) by road. Romanovka is the nearest rural locality.[3]