| Kostrzynek | |
| Settlement Type: | Village |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Greater Poland |
| Subdivision Type2: | County |
| Subdivision Name2: | Piła |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Wysoka |
| Coordinates: | 53.1906°N 16.9903°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | right |
Kostrzynek is a village in the administrative district of Gmina Wysoka, within Piła County, Greater Poland Voivodeship, in west-central Poland.[1] It lies approximately 8km (05miles) west of Wysoka, 180NaN0 east of Piła, and 880NaN0 north of the regional capital Poznań.
When this area was part of Prussia, it was known as Künstrinchen or Küstrinchen.