State Route 113 (SR 113) is an east–west highway in north central and northeastern Ohio.

The route's western terminus was extended to the Indiana state line in 1926, replacing SR 194 and part of SR 111, and its eastern terminus was extended to SR 109 north of Ottawa the same year.

In 1959, when the bypass around Fremont opened, SR 113 was rerouted along it, following SR 12 from Bettsville to SR 53, then following that route on the bypass and overlapping US 20 from Fremont to Bellevue, where it continued on its old route to Lakewood.

Except for a small stretch of road in downtown Fostoria, SR 113 was now completely concurrent from Bloomdale to Bellevue.

The concurrencies were removed, SR 113 was truncated at Bellevue, and the western part of the route (from the Indiana state line to Fostoria) was recertified as SR 613.