HMS Active was a 28-gun Coventry-class sixth-rate sailing frigate of the Royal Navy, launched in 1758. She was one of the captors of the Spanish ship Hermione. After Hermione surrendered, her captors found that she carried a large cargo of gold and silver that would lead to the greatest single amount of prize money awarded to the crew of a British warship.

The Coventry-class frigates were 28-gun sixth rate frigates of the Royal Navy, principally in service during the Seven Years' War and the American Revolutionary War. They were designed in 1756 by Britain's Surveyor of the Navy, Sir Thomas Slade, and were largely modeled on HMS Tartar, which was regarded as an exemplar among small frigates due to its speed and maneuverability. The 1750s were a period of considerable experimentation in ship design, and Slade authorized individual builders to make "such alterations withinboard as may be judged necessary" in final construction.