Barnett "Barney" Frank is an American politician and a member of the United States House of Representatives. He is a Democrat and has represented Massachusetts's 4th congressional district since 1981. The district includes many of Boston's southern suburbs--such as Brookline, Newton and Foxborough--as well as the South Coast.

Following the Democratic takeover of the House of Representatives in the 2006 midterm elections, Frank assumed the chairmanship of the House Financial Services Committee.