The Prontuario dei nomi locali dell'Alto Adige (Italian for Reference Work of Place Names of Alto Adige) is a list of Italianized toponyms aimed at replacing the place names used by the German language community in South Tyrol (Alto Adige in Italian) which was published in 1916 by the Royal Italian Geographic Society (Reale Società Geografica Italiana). The list was called the Prontuario in short and later formed an important part of the Italianization campaign initiated by the fascist regime, as it became the basis for the official place names in the predominantly German-speaking Italian-annexed southern part of the County of Tyrol.
Given the political background of its creation and implementation, the Prontuario has remained a politically contentious topic between the German-speaking and the Italian-speaking communities in South Tyrol.