The Union of Working People's Forces – UWPF (Arabic: اتحاد قوى الشعب العامل | Ittihâd qiwâ al-'amal al-cha'b al-'âmil), also known as Union of Toiling Peoples' Forces (UTPF), was a Nasserist political party in Lebanon which played a key role in the Lebanese Civil War (1975–1990).

[2][3] In ideological terms, the UNWPF represented a right-wing tendency in the Lebanese Nasserist movement.

[5] In the early phase of the Lebanese Civil War the UWPF maintained a 1,000-man strong militia, the Victory Divisions (Arabic: Firqat an-Nasr), which fought alongside the Lebanese National Movement (LNM) militias in the Beirut area, and also maintained military training bases in Nabatieh, Kfar Remen and Habboûch, and received significant support from both the Shia and Sunni Muslim communities.

[5][6] However, in late March 1976 the UWPF left the LNM to enter the pro-Syrian Front of Patriotic and National Parties (FPNP) alliance, and supported the June 1976 Syrian intervention in Lebanon,[3] which caused a rift between them and the other Nasserist groups.

[7] There was also a splinter group of the party, the Union of Working People's Forces-Corrective Movement (UWPF-CM), formed in October 1974 and led by Issam Al-Arab.