| Kornaciska | |
|---|---|
| Village | |
| Coordinates: 52°46′10″N 21°34′58″E / 52.76944°N 21.58278°E | |
| Country |
|
| Voivodeship | Masovian |
| County | Wyszków |
| Gmina | Długosiodło |
Kornaciska [kɔrnaˈt͡ɕiska] is a village in the administrative district of Gmina Długosiodło, within Wyszków County, Masovian Voivodeship, in east-central Poland.
Coordinates: 52°46′10″N 21°34′58″E / 52.76944°N 21.58278°E