This article seeks to address the problem regarding the figure of the devil, that is, if when referring to him we are simply talking about a myth or if we are really referring to a spiritual being with real existence. Our tour begins in Sacred Scripture, passing through the Conciliar Magisterium to finally present the main theological current that denies the existence of the devil.Este artículo busca abordar la problemática respecto a la figura del diablo, es decir, si al referirnos a él hablamos simplemente de un mito o si realmente nos referimos a un ser espiritual con existencia real. Nuestro recorrido comienza en la Sagrada Escritura, pasando por el Magisterio Conciliar, para finalmente presentar la principal corriente teológica que niega la existencia del diablo.