GIOIOSA-IONICA, a town of Calabria, Italy, in the province of Reggio Calabria, from which it is 65 m. N.E. by rail, and 38 m. direct, 492 ft. above sea-level. Pop. (1901) town, 9072; commune, 11,200. Near the station, which is on the E. coast of Calabria 3 m. below the town to the S.E., the remains of a theatre belonging to the Roman period were discovered in 1883; the orchestra was 46 ft. in diameter (Notizie degli scavi, 1883, p. 423). The ruins of an ancient building called the Naviglio, the nature of which does not seem clear, are described (ib. 1884, p. 252).