Bortigiadas (Gallurese: Bultigghjata, Sardinian:Bortigiadas) is a comune (municipality) in the Province of Olbia-Tempio in the Italian region Sardinia, located about 190 kilometres (120mi) north of Cagliari and about 40 kilometres (25mi) west of Olbia. As of 31 December 2004, it had a population of 856 and an area of 76.6 square kilometres (29.6sqmi).