
The Apollo class were a class of second-class protected cruisers built for the Royal Navy in the late 19th century that served during the Boer War and the First World War.

HMS Andromache was an Apollo-class protected cruiser of the Royal Navy. William Henry White designed her, and she was built at Chatham Dockyard and launched on 14 August 1890. The total cost of construction was £186,234.

HMS Apollo, the sixth ship of the Royal Navy to be named for the Greek god Apollo, was a second-class Apollo-class protected cruiser launched in 1891 and converted to a minelayer in 1909 along with six of her sisters. They formed a minelaying squadron in 1914–15 during the First World War, although Apollo was disarmed in 1915 and served in secondary roles until broken up in 1920.

HMS Brilliant was an Apollo-class cruiser of the British Royal Navy which served from 1893 to 1918 in various colonial posts and off the British Isles as a hastily converted minelayer during the First World War.

HMS Indefatigable, was a second-class Apollo-class protected cruiser of the British Royal Navy. The ship was built by the London and Glasgow Shipbuilding Company of Glasgow between 1890 and 1892, launching on 12 March 1891. In 1910, the ship was renamed HMS Melpomene, and in 1913 was sold for scrap.

HMS Intrepid was an Apollo-class protected cruiser of the Royal Navy built on the River Clyde and launched in 1891. She was subsequently converted as a minelayer and sunk as a blockship during the Zeebrugge Raid on 23 April 1918.

HMS Iphigenia was an Apollo-class protected cruiser of the Royal Navy built on the River Clyde and launched in 1891. She was subsequently converted as a minelayer and sunk as a blockship during the Zeebrugge Raid on 23 April 1918.

HMS Latona was an Apollo-class protected cruiser of the Royal Navy which served from 1890 to 1920.

HMS Melampus was an Apollo-class protected cruiser of the Royal Navy which served from 1890 to 1910.

HMS Naiad was an Apollo-class protected cruiser of the Royal Navy which served from 1892 to 1919.

HMCS Rainbow was an Apollo-class protected cruiser built for Great Britain's Royal Navy as HMS Rainbow entering service in 1892. Rainbow saw time in Asian waters before being placed in reserve in 1909. In 1910 the cruiser was transferred to the Royal Canadian Navy for service on the west coast. At the outbreak of the First World War, Rainbow was the only major Commonwealth warship on the western coast of North America. Due to age, the cruiser was taken out of service in 1917 and sold for scrap in 1920 and broken up.

HMS Sappho was an Apollo-class cruiser of the British Royal Navy which served from 1892 to 1918 in various colonial posts.

HMS Sirius was an Apollo-class cruiser of the British Royal Navy which served from 1892 to 1918 in various colonial posts such as the South and West African coastlines and off the British Isles as a hastily converted minelayer during the First World War.

HMS Spartan was an Apollo-class cruiser of the Royal Navy constructed in 1891. The design was a variant of the Marathon-class cruiser. The ships had quick firing guns which were effective as a broadside, but less so when attempting to fire fore or aft.

HMS Thetis was an Apollo-class 2nd class protected cruiser of the Royal Navy, launched on 13 December 1890. Her first significant mission was service in the Bering Sea Patrol with American warships in a combined effort to suppress poaching in the Bering Sea.