Northumbrian was an early steam locomotive built by Robert Stephenson in 1830 and used at the opening of the Liverpool and Manchester Railway (L&M).

[1] It was the eighth of Stephenson's nine 0-2-2 locomotives in the style of Rocket, but it introduced several innovations, which were also included Majestic, the last of the class.

[1] Dawson describes it as the first of a "modern" (steam locomotive) boiler while Hollingsworth note virtually all successors followed this layout.

[1][3] Other features included plate frames, a proper tender, and the cylinders set at a relatively low angle to the horizontal, giving smoother running.

[4] Northumbrian was handed over on 31 July 1830 at the price of £700, the cost being justified by more extensive use of copper and improved running characteristics.