Midhowe Broch is an Iron Age broch on the west coast of the island of Rousay, in the Orkney Islands of Scotland, one of at least nine brochs that stand along the banks of the narrow, dangerous Eynhallow Sound. The broch is part of an ancient settlement, some of which has been lost to coastal erosion.^[1]

The broch tower today stands 4.3 metres (14.1 ft) high, but could have been twice that height originally. Still visible in the interior are stone partitions, a spring-fed water tank and a hearth with sockets, which may have held a roasting spit. It is surrounded by the remains of smaller buildings, which may have been built as ancillary houses, but were later used as workshops; an iron-smelting hearth can still be seen in one.^[1]

Excavations of the site carried out in the 1930s recovered stone and bone tools associated with grain processing, spinning and weaving. Also found were pieces from crucibles and moulds associated with bronzeworking, and a fragment from a Roman bronze vessel.^[1] The finds have been designated as Properties in Care, meaning that Historic Environment ScotlandExecutive non-departmental public body responsible for investigating, caring for and promoting Scotland's historic environment. is responsible for their long-term preservation and public benefit.^[1][2]