| Olszewka | |
|---|---|
| Village | |
| Coordinates: 53°8′N 21°27′E / 53.133°N 21.450°E | |
| Country |
|
| Voivodeship | Masovian |
| County | Ostrołęka County |
| Gmina | Lelis |
Olszewka [ɔlˈʂɛfka] is a village in the administrative district of Gmina Lelis, within Ostrołęka County, Masovian Voivodeship, in east-central Poland. It lies approximately 9 kilometres (6 mi) south-west of Lelis, 11 km (7 mi) north-west of Ostrołęka, and 107 km (66 mi) north of Warsaw.
Coordinates: 53°08′00″N 21°27′00″E / 53.1333°N 21.4500°E