The National Liberation Movement (Spanish: Movimiento de Liberación Nacional, MLN) was a Guatemalan political party formed in 1954 by Carlos Castillo Armas.

The MLN was founded as the National Democratic Movement (Spanish: Movimiento Democratico Nacional, MDN) in 1954 by President Carlos Castillo Armas.

Another faction of the party, the National Reformist Movement, split away after the coup although it never became a major factor in electoral politics.

Once more, Mario Sandoval Alarcón was its presidential candidate, and placed fourth in the race while the alliance won 12 seats in Congress.

The party faded thereafter: it ran alongside the National Advancement Front in 1990 without much success, winning just 4 seats in Congress.