| Ostrówek | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Masovian |
| Subdivision Type2: | County |
| Subdivision Name2: | Otwock |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Karczew |
| Coordinates: | 51.9939°N 21.2431°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
| Population Total: | 160 |
Ostrówek is a village in the administrative district of Gmina Karczew, within Otwock County, Masovian Voivodeship, in east-central Poland.[1] It lies approximately 10km (10miles) south of Karczew, 140NaN0 south of Otwock, and 300NaN0 south-east of Warsaw.