| Official Name: | Aleynikovo |
| Native Name: | Алейниково |
| 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: | Rossoshansky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 50.2333°N 87°W[1] |
Aleynikovo (Russian: links=no|Алейниково) is a rural locality (a selo) in Aleynikovskoye Rural Settlement, Rossoshansky District, Voronezh Oblast, Russia. The population was 536 as of 2010.[2] There are 3 streets.[3]
Aleynikovo is located 21 km northeast of Rossosh (the district's administrative centre) by road. Pavlovka is the nearest rural locality.[4]