The Alternative Democratic Pole (Spanish: Polo Democrático Alternativo or PDA) is a left-wing political party in Colombia,[7] active from 2005 to the present.

Both parties opposed the neoliberal economic program, securitization and militarization of Colombia under then-President Álvaro Uribe.

As of 2009, a considerable number of PDA politicians were still former guerrilla fighters who gave up armed struggle and demobilized during the late 1980s and early 1990s.

[15] In October 2007, the PDA's candidate, Samuel Moreno Rojas won the mayoral election in Colombia's capital Bogotá.

[20] For the 2022 presidential and parliamentary election, the party joined forces with other left-wing and centre-left parties to form the Historic Pact for Colombia (Spanish PHxC) alliance, whose candidates Gustavo Petro and PDA member Francia Márquez, were victorious in the second round of the presidential election, making them the first leftists to assume the Presidency and Vice-Presidency in Colombian history.