Vale of Neath Railway 0-6-0ST locomotives were 0-6-0ST steam locomotives for working the heavy goods traffic on the Vale of Neath Railway and its associated lines in Wales. The first of 13 broad gauge locomotives entered service in 1854 and the last was withdrawn in 1886. The remaining four were standard gauge locomotives. The Vale of Neath Railway was amalgamated into the Great Western Railway on 1 February 1865. The broad gauge locomotives retained their old numbers, but the standard gauge ones were renumbered.