Mill River may refer to:

Rivers in the United States Mill River (Connecticut), in New Haven County Mill River (Fairfield, Connecticut) Mill River, in Stamford, Connecticut, part of the Rippowam River Mill River (Harrington Bay), in Washington County, Maine Mill River (Saint George River tributary), in Thomaston, Maine Mill River (Massachusetts–Rhode Island) Mill River (Northampton, Massachusetts) Mill River (Springfield, Massachusetts) Mill River (Taunton River tributary), in Taunton, Massachusetts Mill River (Otter Creek tributary), in Rutland County, Vermont

Other uses Mill River, New Haven, Connecticut, U.S. Mill River, Massachusetts, U.S. Mill River Historic District Mill River East, Prince Edward Island, Canada Mill River Union High School, in Clarendon, Vermont, U.S.

See also

Mill (disambiguation) Mill Creek (disambiguation) Mills River