The River class was a class of six torpedo-boat destroyers operated by the Royal Australian Navy (RAN). The design was based on a modified version of the British River-class destroyer, 13 of which were planned under the 1904 Naval Estimates, but were cancelled before orders were placed. The first batch of three ships was ordered for the Commonwealth Naval Forces in 1909, followed later by a second batch of three a few years later. All six vessels are named after Australian rivers.