Arkansas Highway 142 is a state highway of 5.05 miles (8.13 km) in Arkansas. It is a short route entirely in Chicot County.

AR 143 begins at US 82/US 278 at Shives and runs south to terminate at Levee Rd. in Lakeport.

The entire route is in Chicot County.

AR 142 ran along Lake Chicot in 1935, but the route became US 82/US 278 before 1947. The current routing was paved by 1962. The route intersects the Fifth Principal Meridian.