| Ostrówek | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Kuyavian-Pomeranian |
| Subdivision Type2: | County |
| Subdivision Name2: | Sępólno |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Sośno |
| Coordinates: | 53.3442°N 17.6125°W |
| Pushpin Map: | Poland |
| Population Total: | 100 |
| Population As Of: | 2006 |
| Area Code: | (+48) 52 |
| Registration Plate: | CSE |
Ostrówek is a village in the administrative district of Gmina Sośno, within Sępólno County, Kuyavian-Pomeranian Voivodeship, in north-central Poland.[1] It lies approximately 8km (05miles) south-west of Sośno, 130NaN0 south-east of Sępólno Krajeńskie, and 370NaN0 north-west of Bydgoszcz.