| State: | AR |
| Type: | AR |
| Route: | 84 |
| Map: | Arkansas 84.png |
| Length Mi2: | 85.8 |
| Length Ref2: | [1] [2] [3] [4] |
| Established: | 1926 |
| Direction A2: | West |
| Direction B2: | East |
| Terminus A2: | in Umpire |
| Terminus B2: | in Rockport |
| Length Mi1: | 3.7 |
| Length Ref1: | [5] |
| Direction A1: | West |
| Direction B1: | East |
| Terminus A1: | in Bogg Springs |
| Terminus B1: | near Wickes |
| Previous Type: | AR |
| Previous Route: | 83 |
| Next Type: | AR |
| Next Route: | 85 |
Arkansas Highway 84 (AR 84, Hwy. 84) is a designation for two state highways in west Arkansas. The western segment is 3.7miles long and travels from County Road 14 (CR 14) in Bogg Springs and heads east to U.S. Route 59 and U.S. Route 71 (US 59/US 71) before terminating. The eastern segment is 85.8 miles long[1] and travels from US 278 in Umpire to U.S. 270B in Malvern.