Boranup is a locality in the Shire of Augusta-Margaret River in the South West region of Western Australia. It is the site of a large coastal dune blow out known as the Boranup sand patch as part of the Boranup beach, and the site of a former M. C. Davies timber company mill. The sand patch area and sand blows affected the alignment of the Busselton to Flinders Bay railway.
It is a karri forest remnant area in the Leeuwin-Naturaliste National Park, as well as a Western Australian State Forest area.
Boranup Forest contains many limestone karst caves, including Nannup Cave and Dingo Cave.
The Boranup area includes private property, a cafe and a gallery, a maze and a scenic drive.