Maine's 4th congressional district was a congressional district in Maine. It was created in 1821 after Maine achieved statehood in 1820 due to the result of the ratification of the Missouri Compromise. It was eliminated in 1933 after the 1930 U.S. Census. Its last congressman was Donald F. Snow.
List of members representing the district
- Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
- Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
- Congressional Biographical Directory of the United States 1774–present