| Official Name: | Tatyanovka |
| Native Name: | Татьяновка |
| Settlement Type: | Settlement |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Blagoveshchensky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 52.9667°N 94°W[1] |
Tatyanovka (Russian: Татьяновка) is a rural locality (a settlement) in Nikolayevsky Selsoviet, Blagoveshchensky District, Altai Krai, Russia. The population was 348 as of 2013.[2] There are 2 streets.
Tatyanovka is located 33 km northeast of Blagoveshchenka (the district's administrative centre) by road. Nikolayevka is the nearest rural locality.[3]