William Hathaway, American lawyer and politician (born 1924)

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.