SS or RMS The Ramsey was a passenger steamer operated by the Isle of Man Steam Packet Company from 1912 to 1914.

[3] In March 1911, Duke of Lancaster was sold to an organisation named the Turkish Patriotic Committee, who had the engines and boilers renovated at Cammell Laird.

[3][nb 1] However, the outbreak of the Italo-Turkish War in September 1911, prevented the purchasers from taking delivery, and the vessel was sold in 1912 to the Isle of Man Steam Packet Company.

On 28 October 1914 she was requisitioned and fitted out as an Armed Boarding Vessel by Cammell Laird with two 12-pounder guns and a ship's company of 98, and renamed simply HMS Ramsey.

In the course of a few months Ramsey intercepted and challenged many ships, sometimes putting a prize crew aboard and taking the suspect into port.