The Dublin and South Eastern Railway 15 and 16 were a pair of 2-6-0 steam locomotives which were built for the heavy goods (freight) traffic on the Dublin to Wexford main line of the Dublin and South Eastern Railway (DSER). The two locomotives were built by Beyer, Peacock and Company at their Gorton Foundry in Manchester. In 1925, the DSER was absorbed into the Great Southern Railways and the two locomotives were renumbered 461 and 462, and placed in Class 461 or Class K2.