Marshwood is a village and civil parish in west Dorset, England, situated on the northern edge of the Marshwood Vale approximately 5.5 miles (8.9 km) northeast of Lyme Regis. Dorset County Council estimate that the parish had a population of 310 in 2013. Figures published from the 2011 census are for Marshwood parish combined with the small neighbouring parish of Bettiscombe: the combined population was 346.