Italian form of the Roman name Antoninus, which was derived from Antonius (see Anthony). There were several early saints named Antoninus, including the patron saint of Sorrento. This was also the name of a 2nd-century Roman emperor.
Czech form of Antoninus (see Antonino), also used as the Czech form of Antonius (see Anthony). A famous bearer was the Czech composer Antonín Dvořák (1841-1904).