The Silverton Tramway Y class was a class of 2-6-0 and 2-6-2T steam locomotives of the Silverton Tramway Company, operating between Broken Hill, New South Wales, and the border of South Australia.

Between 1888 and 1907 the Silverton Tramway Company took delivery of eighteen 2-6-0 and two 2-6-2T locomotives from Beyer, Peacock & Co, Manchester, and two built by James Martin & Co purchased second-hand from the Tarrawingee Tramway.

[1][2][3] The company notionally had 21 Y class locomotives, although three were never operated and only a maximum of 17 were owned at any one time.

They were assembled in Gawler, South Australia by James Martin's Phoenix Foundry.

Since the company had an option to sell to the South Australian Railways any that it deemed surplus, two of the locomotives ("1st Y3" and "1st Y4") passed without use.