| Official Name: | Marchenkovka |
| Native Name: | Марченковка |
| Native Name Lang: | ru |
| Settlement Type: | Selo |
| 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: | Olkhovatsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 50.2667°N 52°W[1] |
Marchenkovka (Russian: links=no|Марченковка) is a rural locality (a selo) in Maryevskoye Rural Settlement, Olkhovatsky District, Voronezh Oblast, Russia. The population was 638 as of 2010.[2] There are 5 streets.[3]
Marchenkovka is located 8 km west of Olkhovatka (the district's administrative centre) by road. Zagiryanka is the nearest rural locality.[4]