Michael F. Doyle Jr. is an American politician who was the U.S. representative for Pennsylvania's 18th congressional district, serving from 1995 to 2022. He is a member of the Democratic Party. His district was based in Pittsburgh and included most of Allegheny County.

Pennsylvania's 18th congressional district was a district including the city of Pittsburgh and parts of surrounding suburbs. A variety of working class and majority black suburbs located to the east of the city were included, such as McKeesport and Wilkinsburg. Also a major part of the district was a number of middle class suburbs that have historic Democratic roots, such as Pleasant Hills and Penn Hills. The district became obsolete following the 2020 United States census. It was largely replaced by Pennsylvania's 12th congressional district.