Rhostrehwfa is a village in southern-central Anglesey, located southwest of Llangefni. To the southeast is the Malltraeth Marsh. It is situated at a prominent point on the crest of a ridge overlooking the River Cefni valley to the south.[1] It contains the Capel Pisgah and several holiday cottages.
It is in the community of Llangristiolus and the Bodffordd electoral ward.