Arkansas Highway 34 is a designation for two state highways in the Upper Arkansas Delta. One segment of 27.22 miles (43.81 km) runs from US 412B in Walnut Ridge east to Highway 135 in Oak Grove Heights. A second segment of 12.96 miles (20.86 km) runs from Highway 135 in Lafe east to Highway 139 at Fritz. Both routes are maintained by the Arkansas State Highway and Transportation Department (AHTD).