Valencia offices of the CNT

The Confederación Nacional del Trabajo (CNT; "National Confederation of Labour") is a Spanish confederation of anarcho-syndicalist labour unions affiliated with the International Workers Association (IWA; Spanish: AIT – Asociación Internacional de los Trabajadores). When working with the latter group it is also known as CNT-AIT. Historically, the CNT has also been affiliated with the Federación Anarquista Ibérica (Iberian Anarchist Federation – FAI). In this capacity it was referred to as the CNT-FAI. Throughout its history, it has played a major role in the Spanish labor movement.