The Benton County Jail is a historic county jail building at 212 North Main Street in Bentonville, Arkansas, United States. It is a two-story brick Classical Revival building, designed by A. O. Clark and completed in 1911. It has pronounced limestone corner quoining, and its main entrance is flanked by Ionic columns and topped by a gabled pediment. The building is notable as a rare smaller-scale work by Clark.