St Mary in the Marsh is a village and civil parish near New Romney in Kent, England, situated in the heart of Romney Marsh in one of its least densely populated areas, with most local amenities available 3 miles away in New Romney or St Mary's Bay at 2 miles. The village centre consists of about forty homes, a few scattered farms and The Star Inn, along with the church of St Mary the Virgin and the St Marys Hut, now closed. St Mary's Bay is also in the parish.