Thomas J. Duffey (December 26, 1927 - December 18, 2016) was a member of the Wisconsin State Assembly.
Duffey was born in Milwaukee, Wisconsin. He graduated from Marquette University High School and Marquette University. From 1945 to 1948, Duffey served in the United States Navy. He is a member of the American Legion and AMVETS.
Duffey was elected to the Assembly in 1954. He was a Democrat.