Dall'alto dell'Apostolico Seggio

Pope Leo XIII's papal encyclical on the subject of Freemasonry in Italy, known both by its Italian incipit Dall'alto dell'Apostolico Seggio and its Latin incipit Ab apostolici Solii celsitudine, was a promulgated on 15 October 1890.

It dealt with Freemasonry in Italy, condemning the contemporary course of public affairs in Italy as the realization of the "Masonic programme". This "programme" was said to involve a "deadly hatred of the Church", the abolition of religious instruction in schools and the absolute independence of civil society from clerical influence.