Bonifacio Ferrero (1476–1543) was an Italian Roman Catholic bishop and cardinal.
Bonifacio Ferrero was born in Biella in 1476, the son of Sebastiano Ferraro and Tomena Avogadro. He was the younger brother of Cardinal Gianstefano Ferrero.
On June 6, 1490, he was made a canon of the cathedral chapter of Vercelli Cathedral; on December 3, 1494, he became its provost.
He was Bishop of Ivrea from his election on July 28, 1497 until November 5, 1509, when he resigned in favour of his brother Gianstefano. On November 5, 1509, the day he resigned as Bishop of Ivrea, he was transferred to the see of Vercelli; he later resigned this office on September 17, 1511 in favor of his brother Agostino Ferrero. At that time, he returned to the see of Ivrea, occupying this see until May 17, 1518, when he resigned in favor of his nephew, Filiberto Ferrero.
From 1499 to 1519, Bishop Ferrero was also the Prior of San Pietro di Chambéry. He was administrator of the see of Nice 1501-04. In 1504, he beame prior of Santi Giovanni e Sebastiano di Benna, a post he held until 1542. He was a participant in the Fifth Council of the Lateran.
Pope Leo X made him a cardinal priest in the consistory of July 1, 1517. He received the red hat and the titular church of Santi Nereo e Achilleo on July 6, 1517.