The Copa del Rey de Baloncesto (English: Basketball King's Cup) is an annual cup competition for Spanish basketball teams organized by Spain's top professional league, the Liga ACB.
Originally known as the Copa de España de Baloncesto, was first played in 1933 and contested in its first editions only by teams from the provinces of Madrid and Barcelona. It was the first nationwide basketball competition played in Spain. During the Francoism, it was referred as the Copa del Generalísimo de Baloncesto, before becoming the Copa del Rey de Baloncesto in 1977.