Pietro Rota (30 January 1805 – 3 February 1890) was an Italian priest who became Bishop of Mantua, based in the city of Mantua, Northern Italy. He was given the mandate of restoring the diocese to obedience to the Pope after succeeding a popular liberal bishop who had supported Italian unification and the surrender of the Pope's temporal powers. He was harassed by the civil authorities, and was not allowed to take his seat.