The article underlines George L. Mosse's legacy in Italian historiographical debate. Starting from the reactions to Mosse's death it highilights the new lines of research influenced by Mosse's work on nationalism, fascism, national socialism, racism, anti-semitism and gender studies, showing the ambivalence of the reception of his researches. This ambivalence, despite some scholars as Emilio Gentile, has determined the trend to read Mosse through the constructivism lenses in Italy.