The town's name derives from the Latin word "uda" (wet, swampy).
It is a municipality in the province of Cagliari, located on the border with the territory of Carbonia-Iglesias, between the plains of the Campidano and Cixerri, in a fertile area thanks to the presence of several streams. Particularly interesting is the district of Saint Lucia and the natural oasis of Mount Arcosu, as well as the trail of Sa Canna, ideal for trekking. The characteristic shape of the land and the abundance of water have encouraged farming and herding. Excellent are the typical cheese products and the local wines are much appreciated.
The presence of the remains of nuraghi and eight pieces of bronze, unearthed near Mount Arcosu, evidence the presence of settlements, which were present in the area since the Nuragic Ages. The Roman colonization is attested by the traces of the various small centers. During the period of the Giudicato, Uta was part of the Curatoria of Decimomannu; later conquered by the Aragonese, it finally submitted the dominion of Savoy.
- the XII century Church of Santa Maria, built in Romanesque style by the Benedictine monks of St. Victor of Marseille, with blocks of limestone, exploited from the mines of Teulada. Located just outside the main centre, it is characterized by great elegance. The façade is divided into two parts by a frame in Arabic style and is flanked by a Gothic Bell Tower, which was added at a later date. Inside are preserved several decorative elements of the Roman era;
- the Parish of Santa Giusta and Santa Sarda, built in 1582, in the main centre. The building still features traces of the original Gothic structure;
- the Church of Saint Lucia;
- the WWF reserve of Monte Arcosu with its 3800 hectares, it is probably the largest in Europe.