Hjørundfjorden is a fjord in the traditional district of Sunnmøre in Møre og Romsdal county, Norway. It is located mostly within Ørsta Municipality, although part of the mouth of the fjord is in Sykkylven Municipality. The 35-kilometre (22 mi) long fjord is an arm off of the larger Storfjorden that stretches south from Ålesund Municipality.