Highway 135 (AR 135, Ark. 135, Hwy. 135) is a north–south state highway in northeast Arkansas. The route of 69.67 miles (112.12 km) runs from US Route 63 (US 63) near Tyronza north through Paragould to US 62.

AR 135 begins at US 63 south of Tyronza and runs north to intersect AR 118 before meeting AR 14/AR 140 in Lepanto. The route continues north to Caraway, where it meets concurs with AR 158. The concurrency ends in Black Oak, when AR 135 begins to arrow west with AR 18. The route leaves AR 18 in Lake City, after which it angles north to Paragould. In Paragould, AR 135 meets US 412, US 49 BUS, and US 49/AR 1 before exiting town headed north. The route meets AR 34 north of Oak Grove Heights, which it follows until Lafe. The route leaves AR 34 and shoots northwest to Hooker, where it meets AR 141. After Hooker, the route straightens north, meeting AR 90 for a brief concurrency before terminating at US 62 east of Corning.

Highway 135 was formerly Arkansas Highway 1W. Highway 1 was split into two directional routings in 1941, and when AR 1E became AR 1 in 1955, the former AR 1W from Paragould to Corning was designated Highway 135.