Joseph D. Morelle (born April 29, 1957) is an American politician serving as the U.S. representative for New York's 25th congressional district since 2018. A Democrat, he was formerly a member of the New York State Assembly representing the 136th Assembly district, which includes eastern portions of the City of Rochester and the Monroe County suburbs of Irondequoit and Brighton. Speaker Sheldon Silver appointed him as majority leader of the New York State Assembly in January 2013 and Morelle served as acting speaker in the Speaker's absence. He was elected to the United States House of Representatives for New York's 25th congressional district in November 2018 following the death of longtime Representative Louise Slaughter.