Andrea Ferrari (13 August 1850 – 2 February 1921) – later adopting the middle name "Carlo" – was an Italian Catholic prelate who served as a cardinal and as the Archbishop of Milan from 1894 until his death.

He also served as the archpriest of Fornovo di Taro from 1874 until 1875 when he was made the vicar curate for the San Leonardo church.

[3] It was just a week after his elevation that he was transferred to the Archdiocese of Milan and was granted the pallium prior to his departure; he also took Carlo as a middle name in honour of Charles Borromeo who was a predecessor during the Counter-Reformation period.

[2] Ferrari was a strong supporter and promoter of Rerum Novarum and espoused the core themes of social justice that the pope highlighted in that document.

[1] Ferrari participated in the papal conclave in 1903 that elected Pope Pius X, and had been considered to be "papabile" for his pastoral qualities.

[2][1] Ferrari petitioned the cardinals to support a pastoral candidate to become pope and began casting his votes for his old colleague Sarto.

[5] Ferrari returned to Milan on 10 August and that month travelled to Cologne to meet with its archbishop Cardinal Anton Hubert Fischer.

During World War I he formed a group that was dedicated to caring for soldiers and prisoners and was awarded in 1919 with the Grand Cross of the Order of Saints Maurizio and Lazzaro for his efforts.

Ferrari ordained as priests the future cardinals Camillo Caccia Dominioni (1899) and Carlo Confalonieri (1916) in addition to Bishop Giorgio Giovanni Elli (1903) and Archbishop Mario Giardini (1904).

Ferrari died in 1921 at 5:55 pm after he finished the recitation of one of the rosaries he himself started due to throat cancer, and was buried in the archdiocesan cathedral under the Sacred Heart altar.

The Milanese came to revere Ferrari for his strong holiness and his old friend Pope John XXIII opened his cause for canonization on 10 February 1963.

Pope Paul VI (another Milanese successor) proclaimed him to be Venerable on 1 February 1975 in recognition of his life of heroic virtue.