Suppo II (835-885) was a member of the Supponid family.
Engelberga, the wife of Louis II may have been his sister.
Along with his cousin, Suppo III, he was the chief lay magnate in Italy during Louis's reign.
He himself had four sons: Adelchis II of Spoleto, Arding, Boso, and Wifred.
He also left a daughter, Bertila, who married Berengar I of Italy.