| Official Name: | Kostomarovo |
| Native Name: | Костомарово |
| 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: | Podgorensky District |
| Subdivision Type4: | Municipality |
| Utc Offset1: | +3:00 |
| Coordinates: | 50.6833°N 85°W[1] |
Kostomarovo (Russian: links=no|Костома́рово) is a rural locality (a selo) in Yudinskoye Rural Settlement, Podgorensky District, Voronezh Oblast, Russia. In the 19th century the village was part of Sagunovskaya volost, Ostrogozhsky Uyezd, Voronezh Governorate.[2] The population was 263 as of 2010.[3] There are 4 streets.[4]
Kostomarovo is located on the Central Russian Upland, 40 km north of Podgorensky (the district's administrative centre) by road. Pokrovka is the nearest rural locality.[5]