186) is an east–west state highway in Franklin County, Arkansas.

The route of 9.54 miles (15.35 km) runs north from Coal Road at Alix through Altus to Philpot Road north of Interstate 40.

After crossing US 64, AR 186 continues north to pass the Our Lady of Perpetual Help Church, which is listed on the National Register of Historic Places, and enter the Wiederhekr Village corporate limits.

The road meets I-40 at exit 41 at a full interchange.

Media related to Arkansas Highway 186 at Wikimedia Commons