Mariateguist Unified Party

{{Underreferenced|date=June 2021}}{{Short description|Peruvian political party}}

{{Use dmy dates|date=May 2019}}

{{Infobox political party

| name = Mariateguist Unified Party

| native_name = Partido Unificado Mariateguista

| colorcode = Red

| leader = Javier Diez Canseco
Agustín Haya de la Torre
Santiago Pedráglio
Hugo Blanco
Eduardo Cáceres
Carlos Tapia

| foundation = 1984

| ideology = Communism
Marxism-Leninism
Mariateguism

| country = Peru

| abbreviation = PUM

| merger = VR
MIR
PRT
PCR

}}

Mariateguist Unified Party (in Spanish: Partido Unificado Mariateguista – PUM) was a political party in Peru founded in 1984 by Revolutionary Vanguard (VR), Revolutionary Left Movement (MIR), Workers Revolutionary Party (PRT) and a sector of Revolutionary Communist Party (PCR). Leaders included Javier Diez Canseco, Agustín Haya de la Torre, Santiago Pedráglio, Hugo Blanco, Eduardo Cáceres and Carlos Tapia. Maria Elena Moyano was also a member of PUM.

PUM was a part of United Left (IU). In 1990, PUM withdrew from IU. In 1995, it rejoined IU, together with UNIR.