Barbara Hafer (born August 1, 1943) is an American politician from the Commonwealth of Pennsylvania. Initially a member of the Republican Party, she served as a member of the Allegheny County Board of Commissioners from 1984 to 1989, as the Auditor General of Pennsylvania from 1989 to 1997 and as the Treasurer of Pennsylvania from 1997 to 2005. She explored a run for Governor of Pennsylvania in 2002 but declined to run after the party rallied around Pennsylvania Attorney General D.