The Basque National Liberation Movement (Spanish: Movimiento de Liberación Nacional Vasco, MLNV; Basque: Euskal Nazio Askapenerako Mugimendua, "ENAM") was an umbrella term that comprised all social, political and armed organizations orbiting around the ideas of the illegal armed organisation Euskadi Ta Askatasuna (ETA), proscribed internationally as a terrorist organisation.
The narrower definition would exclude recently founded legal parties such as Amaiur, Bildu and Sortu which have renounced ETA's methods and publicly distanced themselves from this organization.
These parties have filled the void left by political parties Herri Batasuna and Euskal Herritarrok among others, when they were included in the United States' list of terrorist organizations and formally dissolved by the Spanish Supreme Court in 2003.
The bulk of MLNV's constituency, political and social leaders have transitioned to the aforementioned legal parties, only those remaining organizations and individuals supporting, collaborating or subservient to ETA would be presently considered to belong to the MNLV.
Some of the most relevant organizations that can be considered to have formed part of this political current are listed below.