Elba was a protected cruiser of the Italian Regia Marina (Royal Navy). She was the fifth of six Regioni-class ships, all of which were named for regions of Italy, with the exception of Elba, which was named for the island. Elba was built by the Regio Cantieri di Castellammare di Stabia; her keel was laid in September 1890, she was launched in August 1893, and she was commissioned in February 1896. The ship was equipped with a main armament of four 15 cm (5.9 in) and six 12 cm (4.7 in) guns, and she could steam at a speed of nearly 18 knots (33 km/h; 21 mph).