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

The Apollo class were second-class protected cruisers designed by Sir William White and built for the Royal Navy in the late 19th century. Twenty-one ships of this class were built, making it the largest single class of steel cruisers ever built for the Royal Navy to the same design.