| Kostarowce | |
| Settlement Type: | Village |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Subcarpathian |
| Subdivision Type2: | County |
| Subdivision Name2: | Sanok |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Sanok |
| Coordinates: | 49.5833°N 28°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
| Elevation M: | 346 |
| Population Total: | 720 |
Kostarowce is a village in the administrative district of Gmina Sanok, within Sanok County, Subcarpathian Voivodeship, in south-eastern Poland.[1] It lies approximately 10km (10miles) north-west of Sanok and 510NaN0 south of the regional capital Rzeszów.