Arkansas Highway 266 (AR 266 and Hwy.

266) is an east–west state highway in Faulkner County, Arkansas.

[2] Located entirely in Faulkner County, its west terminus was at an intersection with U.S. Route 65 Business and U.S. Route 64 in Conway at a roundabout near the entrance to Hendrix College.

The route then proceeds east before ending at the Arkansas Human Development Center and continuing on as Siebenmorgen Road.

[3] The entire route is in Conway, Faulkner County.