Several ships of the Italian Navy have been named Etna, after Mount Etna in Sicily:
Italian cruiser Etna, the lead ship of a class of 1880s protected cruisersItalian cruiser Etna, an Etna-class cruiser originally ordered for the Thai Navy and subsequently requisitioned for service by the Italian Navy on the outbreak of World War IIItalian ship Etna (A5328), originally cargo ship USS Whitley (AKA-91), transferred to Italy in 1962Italian ship Etna (A5326), a replenishment ship that entered service in 1998