Hadwen Carlton Fuller (August 28, 1895 – January 29, 1990) was a United States representative from New York.

He was born on August 28, 1895, in West Monroe, Oswego County, New York.

He was organizer of the Parish Oil Co. Inc. in 1926, serving as president since 1937, and was Chairman of the Oswego County Republican Committee in 1942.

He was elected as a Republican to the 78th United States Congress, to fill the vacancy caused by the death of Francis D. Culkin.

He was re-elected to the 79th and 80th United States Congresses, holding office from November 2, 1943 to January 3, 1949.