The Ozieri culture (or San Michele culture) was a prehistoric pre-Nuragic culture that lived in Sardinia from c. 3200 to 2800 BC. It takes its name from the locality where the main findings connected with it have been found, the grotto of San Michele near Ozieri, in northern Sardinia. The influence of the culture extended also to the nearby Corsica.
The archaeological excavation held there in 1914 and 1949 found fine worked vases with geometrical motifs carved in the clay and colored with red ochre. The oldest ones were still rather crude, while the more recent examples were more refined and slender.
Such ceramics were a novelty for prehistoric Sardinia, since up to that point they had been considered typical of the Cyclades and Crete. The development of the Ozieri culture, therefore, probably stemmed from contacts with other eastern Mediterranean civilizations, in particular from the Neolithic Greece area.
Villages of the Ozieri culture which have been identified amount to some 200, located both in plain and mountain areas. They were formed by small stone huts, with a circular (rarely rectangular) wall supporting a wooden frame with a ceiling of boughs. One, near Mogoro, included 267 huts, perhaps also erected on poles driven into the ground. The pavements were composed of limestone slabs, of basalt cobbles or clay.
The villages had no walls, and findings of weapons in the tombs are scarce: the Ozieri civilization was thus perhaps a peaceful one, far different from the later Nuragic civilization. The tombs were grouped in the hypogeous structures that later became known as domus de janas, as opposed to what is found in the region of Gallura (as a feature of the contemporaneous Arzachena culture), where the dead were interred in Megalithic circles. Some tombs, of more monumental appearance, belonged perhaps to chiefs, in the fashion of those in Crete.
Religion has been suggested to have involved the adoration of the Neolithic Mother goddess and of a Bull god, perhaps connected to fertility. These claims, in recent scholarship, have been called into question on the basis that too much is inferred from too little evidence. Female statuettes similar to those of the Ozieri culture have been found in Malta.