Arkansas Highway 139 is the name of two disjointed state highways in Northeastern Arkansas.

Arkansas Highway 139 is a state highway of 44.7 miles (71.9 km) in Greene and Clay Counties. The route lies close to the St. Francis River in low, flat ground dedicated largely to cotton growing where it isn't swampy.

AR 139 begins at US 412 near Brighton. The route then runs north through rural Greene County until meeting and concurring with AR 90 for a brief period east. AR 139 continues north to meet US 62/AR 1 east of Piggott. AR 139 runs with AR 1 through Piggott and with US 62 to Pollard.

After Pollard, AR 139 runs straight north to the Missouri state line, terminating at Route 51 south of Fagus, Missouri.

Arkansas Highway 139 is a state highway of 19.2 miles (30.9 km) in Craighead County.

AR 139 begins in Caraway at AR 158. The route runs north to AR 18 in Monette. AR 139 continues north to the Missouri state line to terminate at MO-SSR-F.