Murray River is a rural municipality in Prince Edward Island, Canada. It is located in Kings County.
Located in the southeast corner of the province, Murray River is bisected by a river of the same name. The community is located at the end of navigation on the river and hosts a small wharf for fishing and recreational vessel.
In the 2021 Census of Population conducted by Statistics Canada, Murray River had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of , it had a population density of in 2021.