HMS Skirmisher was one of two Sentinel-class scout cruisers built for the Royal Navy during the first decade of the 20th century. Completed in 1905 the ship was placed in reserve until she was commissioned in 1907 as part of the Home Fleet. She then spent the next seven years moving on and off of active service in British waters. Skirmisher was assigned to coastal defence duties when the First World War began in 1914, although she was transferred to the Mediterranean in 1915 and then to the Aegean two years later. The ship returned home in mid-1919 and was sold for scrap in 1920.