Nuraghe Su Mulinu is an archaeological site located in the territory of Villanovafranca, in the province of South Sardinia.

The site is located less than a kilometer from the village, on a dorsal overlooking the Flumini Mannu.

It is a construction that dates back to 1800 BC, which has the peculiarity of being composed of different types of constructions such as a corridor Nuraghe (the oldest part of the building) and false dome towers.

The site was later re-settled in the Punic, Roman and medieval eras.

[1] Inside a tower was found the only example of nuragic altar of the first Iron Age (late 10th-early 8th century bc), consisting of a stone carved on vertical motifs with the eagerness of the moon goddess.