Paolo Angelo Ballerini (14 September 1814 – 27 March 1897) was an Italian prelate who was named by Pope Pius IX as the Archbishop of Milan.

In May 1859 Romilli died so following the Concordat of 1855 the Austrian emperor suggested Ballerini, a staunch conservative, as Archbishop of Milan and Pope Pius IX accepted soon.

Ballerini was unable to take possession of his see as archbishop but Auxiliary bishop Carlo Caccia Dominioni governed the archdiocese.

In October 1866 bishop Caccia di Dominioni died and the chapter of the Milan cathedral named Filippo Carcano as vicar of the archbishop; Ballerini did not agree with this decision so in order to avoid other problems pope Pius IX named Luigi Nazari di Calabiana as Archbishop of Milan and Ballerini was named as Latin Patriarch of Alexandria.

The former archbishop of Milan participated in the First Vatican Council, where he supported the dogma of papal infallibility.