| Official Name: | Kazachy |
| Native Name: | Казачий |
| Settlement Type: | Settlement |
| Pushpin Map: | Russia Altai Krai#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Altai Krai |
| Subdivision Name3: | Pervomaysky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +7:00 |
| Coordinates: | 53.5167°N 133°W[1] |
Kazachy (Russian: Казачий) is a rural locality (a settlement) in Borovikhinsky Selsoviet, Pervomaysky District, Altai Krai, Russia. The population was 919 as of 2013.[2] There are 9 streets.
Kazachy is located 19 km north of Novoaltaysk (the district's administrative centre) by road. Borovikha is the nearest rural locality.[3]