John J. Marty (born November 1, 1956) is a member of the Minnesota Senate, representing District 66, which includes portions of Ramsey County in the northern Twin Cities metropolitan area. As a young state senator, he ran for Governor of Minnesota in 1994. He won the DFL party nomination and the Democratic primary but lost the general election to the incumbent governor, Arne Carlson. He ran for governor again in 2010, but withdrew from the race after failing to win his party's endorsement.