State Route 235 is a 133.2-mile-long (214.4 km) north–south state highway in the western portion of the U.S. state of Ohio. Its southern terminus is at US 68 near the small town of Oldtown just north of Xenia, and its northern terminus is at State Route 65 at the Maumee River nearly 5 miles (8.0 km) east of Grand Rapids, west of Otsego.

Interstate 70 (I-70) in the US state of Ohio provides access between Indiana and West Virginia. I-70 is a major highway for traffic within, to, from, and through Ohio. The highway is a core roadway of the Columbus metropolitan area and is of additional importance in the Dayton metropolitan area.