Nostra Signora di Tergu is a parish church in Tergu, province of Sassari, Sardinia, Italy. One of the most outstanding examples of Romanesque architecture in the island, the church and the remains of the annexed abbey are located in a countryside area outside the village.
The construction of the church is attributed to the Giudice of Torres Marianus I, who reigned from 1065 to 1082. In 1122 it was a possession of the abbey of Montecassino. It is mentioned in the Pseudocondaghe of Santa Maria di Tergu as having been consecrated in 1117, and built by workers from Pisa and Lombardy. In 1444 the church and the monastery became part of the archdiocese of Torres.
