The Socialist Party (Arabic: الحزب الاشتراكي; French: Parti socialiste, or PS), is a socialist party in Tunisia.

Established in 2006 under its original name Left Socialist Party (Arabic: الحزب الاشتراكي اليساري; French: Parti socialiste de gauche, or PSG), the party did not achieve legal party status until 2011.

Under the rule of Zine El Abidine Ben Ali, the new party however remained illegal, too, until the Tunisian Revolution in 2011.

[1] It subsequently contested the 2011 Constituent Assembly election as part of the Democratic Modernist Pole alliance, which won five out of the 217 seats.

[2] It participated in the Union for Tunisia alliance to contest the 2014 legislative election, but eventually withdrew and filed its own lists, which however didn't manage to win a seat.