A guided-missile destroyer (DDG) is a destroyer whose primary armament is guided missiles so they can provide anti-aircraft warfare screening for the fleet. The NATO standard designation for these vessels is ****DDG, while destroyers which have a primary gun armament or a small number of anti-aircraft missiles sufficient only for point-defense are designated DD. Nations vary in their use of destroyer D designation in their hull pennant numbering, either prefixing or dropping it altogether. Guided-missile destroyers are equipped with large missile magazines, with modern examples typically having vertical-launch cells. Some contain integrated weapons systems, such as the United States’ Aegis Combat System, and may be adopted for use in an anti-missile or ballistic-missile defense role. This is especially true for navies that no longer operate cruisers, so other vessels must be adopted to fill in the gap. Many guided-missile destroyers are also multipurpose vessels, equipped to carry out anti-surface operations with surface-to-surface missiles and naval guns, and anti-submarine warfare with torpedoes and helicopters.

Active and planned

Royal Australian Navy

Royal Canadian Navy

Chinese People's Liberation Army Navy

Republic of China Navy

French Navy

Although the French Navy no longer uses the term "destroyer", the largest frigates are assigned pennant numbers with flag superior "D", which designates destroyer.

Indian Navy

Italian Navy

Japan Maritime Self-Defense Force

Republic of Korea Navy

Royal Navy

Russian Navy

Spanish Navy

Turkish Navy

United States Navy

Former classes

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