The province of South Sardinia (Italian: provincia del Sud Sardegna; Sardinian: provìntzia de Sud Sardigna) is a province in the autonomous island region of Sardinia, Italy, instituted on 4 February 2016.

It includes the suppressed provinces of Carbonia-Iglesias and Medio Campidano, a large part of the old province of Cagliari (without the 17 municipalities of the new Metropolitan City), and two other municipalities.

[1] Once operational, it will include most of the geographic region of Campidano, the Sarrabus-Gerrei, the Trexenta and the Sulcis-Iglesiente.

[3] Whilst the Italian government challenged the law,[4] thus stalling its implementation,[5] on March 12, 2022, the Constitutional Court ruled in favor of the Autonomous Region of Sardinia.

[6] On April 13, 2023, the regional council, at the proposal of the regional government, approved an amendment to the 2021 reform, defining the timeframe and manner of its implementation, which would see its full implementation in 2024.