Porto Rotondo is a frazione (Rudalza Porto Rotondo) of the municipality of Olbia in the north-east of Sardinia. Porto Rotondo is situated between the gulfs of San Pantaleo and Marinella. The site covers 500 acres and has a port with 800 parking positions for boats and yachts.
Porto Rotondo is part of the province of Olbia-Tempio and is located north-east of Sardinia, a few kilometers from Olbia, Golfo Aranci, Palau and Arzachena and redos Gulf of Marinella.