Sir W G Armstrong Whitworth & Co Ltd was a major British manufacturing company of the early years of the 20th century. Headquartered in Newcastle upon Tyne, Armstrong Whitworth engaged in the construction of armaments, ships, locomotives, automobiles, and aircraft.

The company was formed in 1897 as a merger of the engineering firms of William Armstrong and Joseph Whitworth. The company expanded into the manufacture of cars and trucks in 1902, and created an "aerial department" in 1913, which became the Armstrong Whitworth Aircraft subsidiary in 1920.

In 1927, the defence business merged with Vickers to create a subsidiary Vickers Armstrongs.

Ships

Locomotives

Automobiles

The Armstrong-Whitworth was manufactured from 1904 (when the company took over construction of the flat-four Wilson-Pilcher, with its preselective transmission that first appeared in 1901) until 1919 (when the company merged with Siddeley-Deasy and began construction of the Armstrong-Siddeley). From 1906 the manufacturer was increasingly concerned with the Armstrong-Whitworth; a handsome car along Mercedes lines, this featured engines from 12/14hp to 40hp. Most of these were fours, though a 3050hp six appeared in 1912.

Aircraft