Loiri Porto San Paolo (Gallurese: Lòiri–Poltu Santu Paulu, Sardinian: Lòiri–Portu Santu Paulu) is a comune (municipality) in the Province of Olbia-Tempio in the Italian region Sardinia, located about 180 km north of Cagliari and about 7 km south of Olbia. As of 31 December 2004, it had a population of 2,508 and an area of 117.8 km². The administrative centre is Loiri (Gallurese: Lòiri, Sardinian: Lòiri).
Loiri Porto San Paolo borders the following municipalities: Monti, Olbia, Padru, San Teodoro.
- ^ All demographics and other statistics: Italian statistical institute Istat.