William Dodd Hathaway was an American politician and lawyer from Maine. A member of the Democratic Party, he served as a United States senator for Maine from 1973 to 1979, as the U.S. representative for Maine's 2nd congressional district from 1965 to 1973, and as the commissioner of the Federal Maritime Commission from 1990 to 1999.

Maine's 2nd congressional district is a congressional district in the U.S. state of Maine. Covering 27,326 square miles (70,770 km2), it comprises nearly 80% of the state's total land area. The district comprises most of the land area north of the Portland and Augusta metropolitan areas. It includes the cities of Lewiston, Bangor, Auburn, and Presque Isle. The district is represented by Democrat Jared Golden, who took office in 2019.