| Official Name: | Platonovka |
| Native Name: | Платоновка |
| Native Name Lang: | ru |
| Settlement Type: | Village |
| Pushpin Map: | Russia Voronezh Oblast#Russia |
| Subdivision Type: | Country |
| Subdivision Name: | Russia |
| Subdivision Type1: | Region |
| Subdivision Name1: | Voronezh Oblast |
| Subdivision Type2: | County |
| Subdivision Type3: | District |
| Subdivision Name3: | Ternovsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 51.7°N 46°W[1] |
Platonovka (Russian: links=no|Платоновка) is a rural locality (a village) in Tambovskoye Rural Settlement, Ternovsky District, Voronezh Oblast, Russia. The population was 51 as of 2010.[2] There are 2 streets.[3]
Platonovka is located 46 km west of Ternovka (the district's administrative centre) by road. Tambovka is the nearest rural locality.[4]