| Official Name: | Novotroyenka |
| Native Name: | Новотроенка |
| Settlement Type: | Selo |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Ust-Kalmansky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 51.8333°N 102°W[1] |
Novotroyenka (Russian: Новотроенка) is a rural locality (a selo) in Novokalmansky Selsoviet, Ust-Kalmansky District, Altai Krai, Russia. The population was 42 as of 2013.[2] There are 3 streets.
Novotroyenka is located 34 km south of Ust-Kalmanka (the district's administrative centre) by road. Novokalmanka is the nearest rural locality.[3]