Rear Admiral Newton Eliphalet Mason (14 October 1850 – 23 January 1945) was a United States Navy officer.

His first assignment was aboard the sailing frigate USS Sabine for a special cruise from 1869 to 1870, and he was promoted to ensign on 12 July 1870.

He underwent torpedo instruction in 1871, was promoted to master on 12 July 1871[4] or in 1872[3] (sources vary), and served aboard the screw frigate USS Wabash in the European Squadron from 1871 to 1872.

While at the bureau, he assisted in designing the first gun turret mounts and ammunition hoists ever used in the U.S. Navy, which were installed aboard the monitor USS Miantonomoh.

[5][3][9] Mason's tour at the torpedo station ended in July 1902,[2] and on 16 September 1902 he became commanding officer of the protected cruiser USS Cincinnati in the North Atlantic Fleet.

Mason was a member of the Army and Navy Club of Washington, D.C., the Sons of the American Revolution, and the Pennsylvania Commandery of the Military Order of Foreign Wars.