Mostowlany
| Mostowlany | |
|---|---|
| Village | |
| Orthodox church of Saint John the Evangelist | |
| Coordinates: 53°04′04″N 23°52′43″E / 53.06778°N 23.87861°E | |
| Country | Poland | 
| Voivodeship | Podlaskie | 
| County | Białystok | 
| Gmina | Gródek | 
Mostowlany ([mɔstɔˈvlanɨ]; Lithuanian: Mastaulėnai) is a village in the administrative district of Gmina Gródek, within Białystok County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Belarus. It lies approximately 16 km (10 mi) east of Gródek and 49 km (30 mi) east of the regional capital, Białystok.