Saint Antoninus

Saint Antoninus may refer to:
 * Antoninus of Rome (died 186), martyr
 * Antoninus of Pamiers (first, second, fourth, or fifth century), missionary and martyr, called the "Apostle of the Rouergue"
 * Antoninus of Syria (died 303), martyr
 * Antoninus of Piacenza (died 303), patron saint of Piacenza
 * Antoninus Fontana (Antonino Fontana), archbishop of Milan (died 661)
 * Antoninus of Florence (1389–1459)
 * Antoninus of Sorrento (died 830 AD)