Saint Monica of Hippo (332 - 387) is a Christian saint and the mother of Saint Augustine, who wrote extensively of her virtues and his life with her in his Confessions.

Saint Monica was of Berber descent (Monica was a Berber name derived from the Libyan deity Mon worshipped in the neighbouring town of Thibilis, Algeria) . She was born at Tagaste (located in modern-day Souk Ahras, Algeria). Her parents brought her up as Christian and married her to an older, pagan man named Patricius. He was a man with a great deal of energy, but also a man given to violent tempers and adultery. Augustine reports that despite the prevalence of domestic abuse at the time, because of her obedience to him, Patricius never beat St. Monica. Furthermore, her mother-in-law was against her and put her into great troubles.

However, St. Monica attended church daily and found patience. She would say to other women who had bad marriages, "If you can master your tongue, not only do you run less risk of being beaten, but perhaps you may even, one day, make your husband better." She won the favor of her mother-in-law in a short time. Eventually, she converted Patricius to Christianity and calmed his violence.

St. Monica bore three children, among them Saint Augustine. Augustine made her very happy with his successes as a scholar and teacher, but he also made her very ashamed with his debauchery. For ten years, Augustine lived with his mistress and subscribed to Manichaeism. St. Monica sent Augustine to a bishop to be convinced of his errors. The bishop, however, was unable to prevail, and he advised St. Monica simply to continue to pray for her son. He told her, "It is impossible that the son of so many tears should perish." At the age of 28, Augustine received grace, according to his Confessions, and came to orthodox Christianity.

When Patricius died, St. Monica joined Augustine in Italy. When she was fifty-six, she died while in Ostia with Augustine preparing to leave for a return to Africa. This was not long after her son's baptism by St. Ambrose.

Monica was buried at Ostia, however her relics were later reinterred at the Church of Sant'Agostino in Rome.

St. Monica's feast day, which was on 4 May, was in 1969 moved by the Roman Catholic Church to 27 August, the day before the feast of her son Augustine. The Evangelical Lutheran Church in America likewise venerates her on that day. She is the patron saint of patience, wives, mothers, and abuse victims.