State Route 107 (SR 107) is a state route that runs between SR 49 and U.S. Route 20A (US 20A)/SR 15 in the US state of Ohio. The 11.05 miles (17.78 km) of SR 107 that lie within the state serve as a minor highway. Various sections are rural two-lane highway and rural four-lane highway. The highway passes through residential and commercial properties.The highway was first signed in 1923 and was much longer than it is today, going to the Michigan state line.