| Official Name: | Semyonovka |
| Native Name: | Семёновка |
| Settlement Type: | Settlement |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Tretyakovsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 50.95°N 110°W[1] |
Semyonovka (ru|Семёновка) is a rural locality (a settlement) in Shipunikhinsky Selsoviet, Tretyakovsky District, Altai Krai, Russia. The population was 131 as of 2013.[2] There are 7 streets.
Semyonovka is located 45 km east of Staroaleyskoye (the district's administrative centre) by road. Ivanovka is the nearest rural locality.[3]