Ustronie Morskie () is a village in Koà Âobrzeg County, West Pomeranian Voivodeship, Poland. It is the seat of the gmina (administrative district) called Gmina Ustronie Morskie. It lies approximately north-east of Koà Âobrzeg and north-east of the regional capital Szczecin. It is located on the Slovincian Coast, within the historic region of Pomerania.
Ustronie Morskie is a popular summer tourist destination with a beach, guesthouses and restaurants. A Neo-Gothic church of the Exaltation of the Holy Cross is located in Ustronie Morskie.
The village has a population of 1,800.