The Giudicato of Agugliastra or Ogliastra was a small and short-lived giudicato in Sardinia

Sardinia

Sardinia is the second-largest island in the Mediterranean Sea . It is an autonomous region of Italy, and the nearest land masses are the French island of Corsica, the Italian Peninsula, Sicily, Tunisia and the Spanish Balearic Islands.The name Sardinia is from the pre-Roman noun *sard[],...

 probably in the tenth and eleventh centuries. It lay south of Gallura

Giudicato of Gallura

The Giudicato of Gallura was one of four Sardinian giudicati of the Middle Ages. These were de facto independent states ruled by judges bearing the title iudex . Gallura, a name which comes from gallus, meaning rooster , was subdivided into ten curatoriae governed by curatores under the judge...

, east of Arborea, and north of Cagliari

Giudicato of Cagliari

The Giudicato of Cagliari was one of the four Sardinian giudicati of the Middle Ages. It covered the entire south and central east portion of the island and was composed of thirteen subdivisions called curatoriae. To its north and west lay Arborea and north and on the east lay Gallura and Logudoro...

 along the Tyrrhenian Sea

Tyrrhenian Sea

The Tyrrhenian Sea is part of the Mediterranean Sea off the western coast of Italy.-Geography:The sea is bounded by Corsica and Sardinia , Tuscany, Lazio, Campania, Basilicata and Calabria and Sicily ....

 on the east of the island. Its capital was Ogliastra.

Agugliastra is the only one of the several small giudicati known from the Dark Ages. It was annexed by Cagliari early on and thereafter there remained only four giudicati on Sardinia.