USS The Sullivans (DDG-68) is an Arleigh Burke-class Aegis guided missile destroyer. She is the second ship of the United States Navy to be named for the five Sullivan brothers–George, Francis, Joseph, Madison, and Albert Sullivan, aged 20 to 27–who died when their ship, USS Juneau, was sunk by a Japanese submarine in November 1942 in the Naval Battle of Guadalcanal. This was the greatest military loss by any one American family during World War II.

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.