More than 3,000 people attended a private funeral for the 28-year-old in his home town of Fiumicello in northeastern Italy, nine days after his torture-scarred body was found dumped in a ditch on the outskirts of the Egyptian capital.
A two-hour service in the town's sports hall culminated in a poignant message from his mother Paola Regeni, read on her behalf by a friend of Giulio's.
The Egyptian coptic priest who had blessed Regeni's corpse following its discovery in Cairo had earlier said Regeni's death could serve to save other lives, referring to the biblical story of Barabbas, the man chosen by a mob to be spared crucifixion ahead of Jesus Christ.
"Giulio is the scapegoat who will free the Barrabas that we do not yet know," said Father Mamdua, who was invited to Italy for the service by the Regeni family.