Aglientu () is a town and comune (municipality) in the Province of Gallura North-East Sardinia in the autonomous island region of Sardinia in Italy, located about north of Cagliari and about northwest of Olbia. It has 1,195 inhabitants.
Aglientu borders the municipalities of Aggius, Luogosanto, Santa Teresa Gallura, Tempio Pausania, and Trinità d'Agultu e Vignola.
In 2005 Aglientu hosted the Kitesurf World Cup. It is home to the Festa del Turista ("Tourist's Feast").
Demographics As of 2026, the population is 1,195, of which 50.4% are male, and 49.6% are female. Minors make up 11.5% of the population, and seniors make up 31.7%.
Immigration As of 2025, immigrants make up 11.8% of the total population. The 5 largest foreign countries of birth are Romania, Germany, France, Switzerland, and Hungary.
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