The United People Alliance (Portuguese: Aliança Povo Unido or APU) was an electoral and political coalition between the Portuguese Communist Party (PCP) and the Portuguese Democratic Movement (MDP-CDE).

After 1983, the Ecologist Party "The Greens" also joined.

[1] The coalition was formed in 1978 in order to run for the next legislative election and split up after the breakaway and implosion of the MDP-CDE in 1987.

After that, the PCP started to run in coalition with the Ecologist Party "The Greens" in the Democratic Unity Coalition.