Elisabetta Sanna, T.O.S.F., was an Italian Roman Catholic from Codrongianos Province of Sassari who was an active member of both the Third Order of Saint Francis and the Union of the Catholic Apostolate. In the latter she was a friend and compatriot of Vincent Pallotti. As a result of smallpox, Sanna was for the most part disabled and further ailments prevented her from returning to her hometown after departing on a pilgrimage; this forced her to take up residence in Rome where she later died.