Roma was the name of three battleships of the Regia Marina (Italian Royal Navy), and may refer to:
, a broadside ironclad, the lead ship of the Roma class, completed in 1869 and stricken in 1895, a predreadnought battleship of the Regina Elena class completed in 1908 and stricken in 1927, a dreadnought battleship of the Vittorio Veneto class commissioned in 1942 and sunk in 1943