At least five armed robbers burst into Baggio’s villa near the northern city of Vicenza about 10pm (local time) on Thursday, according to Italian media reports.
One struck Baggio on the head with the butt of a gun when the former footballer confronted them.
The robbers locked the 57-year-old Baggio and his family in a room while they stole jewellery, watches and cash.
After the thieves left, Baggio broke down the door and called police. He was taken to the hospital and received stitches for the wound. His family members were not harmed.
Baggio played 56 games for Italy, scoring 27 goals.
AAP