Greek destroyer Hydra (D97)
 Hydra (Greek: ΒΠ Ύδρα) was a Greek destroyer of the Dardo class which served with the Hellenic Navy during the early stages of the Second World War. It was named after the Saronic Gulf island of Hydra which played an important role in the Greek War of Independence and was the fourth ship to bear this name.She was constructed in Sestri Ponente Italy by Cantieri Odero and commissioned by the Hellenic Navy in 1933.