Buddusò is a comune (municipality) in the Province of Olbia-Tempio in the Italian region Sardinia, located about 150 km north of Cagliari and about 45 km southwest of Olbia. As of 31 December 2004, it had a population of 4,088 and an area of 218.2 km².
Buddusò borders the following municipalities: Alà dei Sardi, Bitti, Oschiri, Osidda, Pattada.