Mostno (pronounced [ˈmɔstnɔ]; formerly German: Kerstenbrügge) is a village in north-western Poland, located in the administrative district of Gmina Dębno, within Myślibórz County, West Pomeranian Voivodeship. It lies approximately 5 kilometres (3 miles) east of Dębno, 22 km (14 mi) south of Myślibórz, and 76 km (47 mi) south of the regional capital Szczecin. The village has a population of 206.
The area around Mostno contains some of the largest oil and natural gas deposits in Poland, extracted as part of the BMB (Barnówko-Mostno-Buszewo) Oil and Gas Field project. The village's history dates back to 1771, when a tar distillery was established and colonists settled there. From 1975 to 1998, the village administratively belonged to the Gorzów Voivodeship.
