Muskerry West (Irish: Múscraí Thiar)is one of the baronies of Ireland, a historical geographical unit of land. Its chief town is Macroom. It is one of 24 baronies in the county of Cork. It may also be viewed as a half barony because sometime before the 1821 census, it was divided from its other half – Muskerry East. Other neighbouring baronies include Duhallow to the north (whose chief town is Newmarket) and the Barony of Carbery East (West Division) to the south (whose chief town is Dunmanway).