Olbia (Italian pronunciation: [ˈɔlbja] ⓘ,[2][3] locally [ˈolbja]; Sardinian: Terranoa; Gallurese: Tarranoa)[4] is a city and commune of 60,346 inhabitants (May 2018) in the Italian insular province of Sassari in northeastern Sardinia, Italy, in the historical region of Gallura.

During the First Punic War, the Romans fought against the Carthaginians and the Sardinians near Olbia, where the general Hanno died in battle.

Olbia is a tourist destination thanks to its sea and beaches and also for the large number of places of cultural interest to visit.

Olbia has a Mediterranean climate (Csa), with mild winters, warm springs and autumns and hot summers.

The internal city public transport and bus connections with the surrounding areas are provided by the ASPO[9] (Olbia's public service company), while vehicle connections with the other centers of the territory are provided by the ARST[10] (Sardinian regional transport company).