The Socialist Union of Popular Forces (Arabic: الاتحاد الاشتراكي للقوات الشعبية, romanized: Al-Ittihad Al-Ishtirakiy Lilqawat Al-Sha'abiyah; Standard Moroccan Tamazight: ⵜⴰⵎⵓⵏⵜ ⵜⴰⵏⵎⵍⴰⵢⵜ ⵏⵉⵖⴰⵍⵍⵏ ⵉⴳⴷⵓⴷⴰⵏⵏ; French: Union Socialiste des Forces Populaires, USFP) is a social democratic[2] political party in Morocco.

[4][5] The party won the 1997 parliamentary election,[6] and led the government of Morocco with a centre-left coalition.

[6] During this period, Abderrahmane Youssoufi, who led the USFP, served as the Prime Minister of Morocco.

[7] The USFP was included in the government of Prime Minister Abbas El Fassi, formed on 15 October 2007.

[10] In the run-up to the November 2011 parliamentary elections, the USFP sought to present a united front with the Party of Progress and Socialism (PPS) and Democratic Forces Front (FFD) to reverse the loss of support for the Moroccan left in the preceding years.