Loiri Porto San Paolo (Gallurese: LòiriâÂÂPoltu Santu Paulu, ) is a comune (municipality) in the Province of Gallura North-East Sardinia in the Italian region Sardinia, located about north of Cagliari and about south of Olbia. The administrative centre is Loiri (Gallurese: Lòiri, ).
Loiri Porto San Paolo borders the following municipalities: Monti, Olbia, Padru, San Teodoro.