The 1974 Ohio State Auditor election was held on November 5, 1974, to elect the Ohio State Auditor. Primaries were held on May 7, 1974. Incumbent Democratic Ohio State Auditor Joseph T. Ferguson chose not to seek re-election. His son, Democratic Deputy Auditor of State Thomas E. Ferguson, won the election, defeating the returning 1970 Republican nominee for this office, former Ohio State House RepresentativeRoger Tracy, by 11 percentage points.