Highway 14 (AR 14, Hwy. 14) is an east–west state highway in north Arkansas. The route of 227.35 miles (365.88 km) begins at Boat Dock Road near Table Rock Lake and runs east to Mississippi County Route 1020 (CR 1020) at Golden Lake. The highway's general alignment between the western terminus and Marked Tree closely follows the original routing as established in the initial 1926 Arkansas state highway numbering plan. The route from Highway 140 in Lepanto east across Interstate 55 to Golden Lake is a later extension.

After Marked Tree, AR 14 meets with US 63 for a stretch, before heading to Harrisburg, where it crosses AR 1. Highway 14 then goes on to Waldenburg, where it meets US 49 and AR 214, Newport (crossing US 67) and Batesville (AR 25). The route then passes through Buffalo River State Park on its way to meeting US 412 in Yellville. Arkansas Highway 14 continues to AR 7 and Lead Hill before merging onto old US 65 (now AR 365) at Omaha. This leads to the end of the route, when AR 14 becomes Boat Dock Road and ends in a cul-de-sac at Table Rock Lake.

Arkansas Highway 14 travels north to Marie where it adjuncts AR 181. Interstate 55 meets AR 14 outside of Marie as Exit 41. The road continues to Lepanto, where it meets AR 135 and becomes concurrent with AR 140 until Marked Tree.

The route was first designated in 1926 in the original state highway numbering. State Road 14 ran from Omaha east to Marked Tree in Poinsett County.

Mile markers reset at some concurrencies.[a 1][a 2]

Arkansas Highway 14 Spur is a 1.34 miles (2.16 km) route in Arkansas connecting Southside and Salado. In Southside, it meets US 167.