| Official Name: | Kachalinskaya |
| Native Name: | Качалинская |
| Settlement Type: | Stanitsa |
| Pushpin Map: | Russia Volgograd Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Name1: | Volgograd Oblast |
| Subdivision Name3: | Ilovlinsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +4:00 |
| Coordinates: | 49.1°N 45°W[1] |
Kachalinskaya (Russian: Качалинская) is a rural locality (a stanitsa) in Kachalinskoye Rural Settlement, Ilovlinsky District, Volgograd Oblast, Russia. The population was 442 as of 2010.[2] There are 14 streets.[3]
Kachalinskaya is located 39 km south of Ilovlya (the district's administrative centre) by road. Kachalino is the nearest rural locality.[4]