No, not the TV show, or the model company, Judge Advocate General. The JAG corps is the Navies legal department providing services for all sailors in military law and civilian law.

In 1775, the Continental Congress enacted the Articles of Conduct. This provided a code of behavior governing all ships and men of the Continental Navy. Shortly after this, all of these ships were sold and the Navy and Marine Corps were disbanded. In July 1797, Congress, after authorizing construction of six ships, enacted the Rules for Regulation of the Navy as a temporary measure. Then, in 1800, Congress enacted a more sophisticated code adopted directly from the British Naval Code of 1749, which is odd since the US military had been slow to adopt European standards. There was little or no need for lawyers to interpret these simple codes, nor was there a need for lawyers in the uncomplicated administration of the Navy prior to the American Civil War.

During the Civil War, however, Secretary of the Navy Gideon Welles named a young assistant U.S. Attorney in the District of Columbia to present the government's case in complicated courts-martial. Without any statutory authority, Secretary Welles gave Wilson the title of "Solicitor of the Navy Department," making him the first House Counsel to the United States Navy.

By the Act of March 2, 1865, Congress authorized the President to appoint, by and with the advice and consent of the Senate, for service during the rebellion and one year thereafter, an officer of the Navy Department to be called the “Solicitor and Naval Judge Advocate General.” The United States Congress maintained the billet on a year-to-year basis by amendments to the Naval Appropriations Acts. In 1870, Congress transferred the billet to a newly established Justice Department with the title of Naval Solicitor.

In 1967, Congress decided to establish the Judge Advocate General's Corps within the Department of the Navy. The legislation was signed into law by President Lyndon B. Johnson on December 8, 1967, and ensured Navy lawyers' status as staff officers within the Navy, similar to physicians and chaplains.