Bruce DeMars (June 3, 1935 – February 3, 2024) was a United States Navy four star admiral who served as Director, Naval Nuclear Propulsion from 1988 to 1996.

DeMars was born in Chicago, Illinois, on June 3, 1935, and graduated from the United States Naval Academy in 1957.

[1] After staff duty with Squadron Ten, DeMars served as Senior Member of the Nuclear Propulsion Examining Board, United States Atlantic Fleet.

With clear and documented intelligence information, mostly as a result of the Walker Whitworth espionage cases, the USSR NUCLEAR Submarine Operational and Stealth Technology had achieved major advances compared to the historical superiority of the United States Submarine Force which was well documented by the U.S. Intelligence Community and Operational Experience.

Admiral DeMar's consistent, persistent and demanding approach was the primary incentive and the incentivised series of detailed plans and designs to achieve this success.