Cantieri Riuniti dell'Adriatico ("United Shipbuilders of the Adriatic") was an Italian manufacturer in the sea and air industry which was active from 1930 to 1966.
The new company built a number of light and heavy cruisers for the Regia Marina (Royal Italian Navy) between the wars, as well as some 27 submarines.
During World War II, CRDA Trieste built two battleships for the Regia Marina, Vittorio Veneto and Roma.
CRDA survived the postwar shakeup in the shipbuilding industry and went on to build several more commercial liners in the 1950s and 1960s, as well as a few naval vessels.
The following table lists ships built at the former STT shipyards after the company's 1929 merger with Cantieri Navale Triestino to form CRDA.