| Official Name: | 3 Internatsional |
| Native Name: | 3 Интернационал |
| Settlement Type: | Settlement |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Kamensky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 53.8667°N 116°W[1] |
3 Internatsional (Russian: 3 Интернационал) is a rural locality (a settlement) in Verkh-Allaksky Selsoviet, Kamensky District, Altai Krai, Russia. The population was 4 as of 2013.[2] There are 2 streets.
3 Internatsional is located 22 km northeast of Kamen-na-Obi (the district's administrative centre) by road. Verkh-Allak is the nearest rural locality.[3]