Shared Horizon ( Italian: Orizzonte Comune, abbr. OC) is a regionalist political party active in Sardinia, led by Franco Cuccureddu.

Countrywide, OC is aligned with South calls North, led by Cateno De Luca. ^{[1] [2]}

Cuccureddu, who had previously been a leading member and deputy secretary of the Movement for the Autonomies, ^[3] a regional councillor in 2009–2014 and the leader of Civic Sardinia ^[4] (which had taken part to the 2019 regional election within the centre-right coalition, obtaining 1.6% of the vote and one seat), launched the new party and announced that it would be part of the centre-left coalition. ^[5]

In the 2024 regional election OC won 3.0% of the vote and three seats in the Regional Council of Sardinia, for Cuccureddu, Sandro Porcu and Salvatore Cau. ^[6] After the election, in which the centre-left candidate Alessandra Todde of the Five Star Movement was narrowly elected president of Sardinia, Cuccureddu was appointed regional minister of Tourism, Craftmanship and Commerce in the new regional government. ^[7]