| Communist Unification Party | |
| Native Name: | Partido Comunista de Unificación |
| Colorcode: | red |
| Merger: | Lucha de Clases Larga Marcha hacia la Revolución Socialista Organización Comunista Información Obrera |
| Merged: | Party of Labour of Spain |
| Ideology: | Marxism-leninism Maoism Anti-Revisionism |
| State: | Spain |
Communist Unification Party (in Spanish: Spanish; Castilian: Partido Comunista de Unificación) was a political party in Spain. Formed in 1976 through the unification of the two groups Spanish; Castilian: Lucha de Clases and Spanish; Castilian: Larga Marcha hacia la Revolución Socialista. Later the same year the Communist Organization Workers Information Spanish; Castilian: Organización Comunista Información Obrera joined the PCU.
PCU promoted abstention in the 1976 Referendum on the Law of Political Reform.
In 1977 merged into the Party of Labour of Spain (PTE).[1]