| Official Name: | Zarnitsa |
| Native Name: | Зарница |
| Settlement Type: | Passing loop |
| 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: | 51.6333°N 98°W[1] |
Zarnitsa (Russian: Зарница) is a rural locality (разъезд, passing loop) in Bezrukavsky Selsoviet, Rubtsovsky District, Altai Krai, Russia. The population was 274 as of 2013.[2] There are 5 streets.
Zarnitsa is located 19 km north of Rubtsovsk (the district's administrative centre) by road. Zakharovo is the nearest rural locality.[3]