Otto I of Montferrat

Otto I (died 991) was the third son of Aleram, founder of the Aleramici dynasty, and a younger brother of Anselm of Savona. He first appears in 961, in the charter founding Grazzano Abbey.

After Aleram died around 969 the family march passed to Anselm; Otto is recorded beside him as marquis only in 991 and died in that same year. His short co-rule began the Ottonian branch from which the marquises of Montferrat descended.