| Official Name: | Tunzha |
| Native Name: | Туньжа |
| Settlement Type: | Village |
| Pushpin Map: | Russia Altai Republic#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Republic |
| Subdivision Name3: | Choysky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 52°N 118°W[1] |
Tunzha (ru|Туньжа; alt|Тунјы, Tunĵı) is a rural locality (a selo) in Paspaulskoye Rural Settlement of Choysky District, the Altai Republic, Russia. The population was 256 as of 2016.[2] There are 42 streets.
Tunzha is located east from Gorno-Altaysk, in the valley of the Malaya Isha River, 6 km west of Choya (the district's administrative centre) by road. Choya is the nearest rural locality.[3]