The Great Eastern Railway (GER) Class Y14 is a class of 0-6-0 steam locomotive. The LNER classified them J15. The Class Y14 was designed by T.W. Worsdell for both freight and passenger duties - a veritable 'maid of all work'.

Introduced in July 1883, they were so successful that all the succeeding Locomotive Superintendents continued to build new batches up until 1913 with little design change, the final total being 289. During World War I, 43 of the engines served in France and Belgium.

Because of their light weight the locomotives were given the Route Availability (RA) number 1, indicating that they could work over nearly all routes.

289 were built, by the time British Railways was formed, there were 127 J15 locomotives still in existence. Only one has been preserved.