Ohio State Highway 120

Ohio 120 is an east-west highway in northwestern Ohio, generally close to the Michigan state line. All of it is surface highway. It has its western terminus on the Michigan state line where its slight angle leads it toward Morenci, Michigan. The road continues in Michigan as an unnumbered county highway.

It has its eastern terminus in Toledo, Ohio as, for all practical purposes, a spur of U.S. Highway 20, US 20 largely bypassing Toledo to the west and south.