Matthew James Salmon (born January 21, 1958) is an American politician who served as a U.S. representative from Arizona from 1995 to 2001 and again from 2013 until 2017. A member of the Republican Party, he retired from office after representing Arizona's 5th congressional district. The district is based in Mesa and includes most of the East Valley; he previously represented Arizona's 1st congressional district. In 2002, he lost by less than 1% to Janet Napolitano in a highly competitive gubernatorial race. He regained a congressional seat in the 2012 election.