Navy Log is an American television drama anthology series created by Samuel Gallu that presented stories from the history of the United States Navy. This series ran on CBS from September 20, 1955, until September 25, 1956. On October 17, 1956, it moved to ABC, where it aired until September 25, 1958. It changed networks because CBS "could not schedule it to the sponsor's wishes". The program aired for a total of three seasons and 104 episodes.

The Department of Defense and departments of the Navy cooperated with production of the filmed 30-minute series. In conjunction with that cooperation, the Navy Information Office solicited suggestions for stories, accompanied by brief documentation, with a Navy Log Project Officer in charge. The opening scene, filmed aboard the U.S.S. Hancock, showed 2,000 sailors forming the words "Navy Log".

The program's theme was "The Navy Log March" by Fred Steiner. Episodes opened with an announcer saying, "This is Navy Log. The dramas you see each week on Navy Log are from official U. S. Navy files. They tell of ships and places and those who man them. Recorded through the years in Navy Log."

In August 1957, then-Senator John F. Kennedy was technical adviser for the "P. T. 109" episode of the program, which related the story of the sinking of the patrol torpedo boat that he commanded. He also was a guest on the broadcast of that episode.