Frank Morey Coffin (born July 11, 1919) was a Democratic member of the United States House of Representatives from the state of Maine. Representing Maine’s 2nd Congressional District, he served two terms in Congress from January 3, 1957, to January 3, 1961. During this period, he was part of the postwar generation of legislators who helped shape national policy in the late 1950s.

Coffin’s tenure in the House marked his principal role in national public life. As a representative, he served as a member of the Democratic Party and held office during a time of significant political and social change in the United States. Although specific committee assignments, legislative initiatives, and later career details are not provided in the available record, his service from 1957 to 1961 places him among the historical members of Congress who represented Maine at the federal level.