The Confederaci髇 Nacional del Trabajo (CNT; 'National Confederation of Labour') is a Spanish confederation of anarcho-syndicalist labor unions affiliated with the International Workers Association (IWA; Spanish: AIT - Asociaci髇 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 Federaci髇 Anarquista Ib閞ica (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.