| Official Name: | Kvashino |
| Native Name: | Квашино |
| 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: | Vorobyovsky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 50.6333°N 89°W[1] |
Kvashino (Russian: links=no|Квашино) is a rural locality (a selo) in Solonetskoye Rural Settlement, Vorobyovsky District, Voronezh Oblast, Russia. The population was 429 as of 2010.[2] There are 5 streets.[3]
Kvashino is located 9 km west of Vorobyovka (the district's administrative centre) by road. Pervomaysky is the nearest rural locality.[4]