The Apollo-class sailing frigates were a series of twenty-seven ships that the British Admiralty commissioned be built to a 1798 design by Sir William Rule.

Twenty-five served in the Royal Navy during the Napoleonic Wars, two being launched too late.

Of the 25 ships that served during the Napoleonic Wars, only one was lost to enemy action.

Of the entire class of 27 ships, only two were lost to wrecking, and none to foundering.

Following the Peace of Amiens, it ordered a further twenty-four sister-ships to the same design between 1803 and 1812.