HMS Wallaroo was a Pearl-class cruiser built for the Royal Navy, originally named HMS Persian, built by Armstrong, Mitchell, Elswick, Newcastle upon Tyne and launched on 5 February 1890.

[2] Renamed on 2 April 1890, as Wallaroo as part of the Auxiliary Squadron of the Australia Station.

On 6 January 1904 while sailing off Montague Island, one of her boilers exploded killing four and wounding three.

[3] She was then stationed off Brightlingsea, Essex, as the base ship for the boom and net-protected Swin Anchorage, returning to Chatham in 1916.

This article about a specific naval ship or boat of the United Kingdom is a stub.