Martin J. Sweeney (born July 2, 1963) is an American politician of the Democratic Party in Cleveland, Ohio. He was elected a member of the Ohio State legislature in 2014. Previously he served as the majority leader of Cleveland City Council, representing Ward 20. In 2014, Sweeney decided to run for the Ohio House of Representatives. After winning a three-way primary, he won the general election over Republican 62%-38%.