Summit Tank is a railway platform on the Unanderra–Moss Vale line in the Southern Highlands of New South Wales, Australia.

[1] In the late 1920s it was decided by the then New South Wales Government that a railway line was needed between Moss Vale and Wollongong to get freight trains from southern locations directly to Port Kembla and away from the increasing passenger train services in southern and south western Sydney.

A right of way was surveyed from Unanderra just south of Wollongong through the southern part of Farmborough Heights on a gradient of 1 in 33 to Moss Vale.

Summit Tank had a passenger platform, train crew amenities and a 60-foot (18 m) manual turntable for turning locomotives and ash pits.

Summit Tank has a mainline and passing loop with a platform for safeworking duties including a local control panel and radio antenna for train operations.