Canehill, also known as Cane Hill and Boonsboro, is an unincorporated community and census-designated place in Washington County, Arkansas, United States. It was first listed as a CDP in the 2020 census with a population of 74. The community is located in the Ozark Mountains on the outskirts of the Northwest Arkansas metropolitan area. One of the most historic communities in the state, Canehill contains seventeen listings on the National Register of Historic Places.