The 1992 United States Senate election in Ohio was held on November 3, 1992. Incumbent Democratic U.S. Senator John Glenn defeated Republican Lieutenant Governor Mike DeWine to win re-election to a fourth term, coinciding with the presidential election. Glenn's voting percentage of 51% represented the worst performance of his four runs for the Senate, partially due to the presence of third-party candidate Martha Grevatt of the far-left Workers World Party. DeWine would later be elected to Ohio's other Senate seat in 1994 and served with Glenn until the latter's retirement in 1999.