HMS Thetis was a 38-gun fifth-rate

Fifth-rate

In Britain's Royal Navy during the classic age of fighting sail, a fifth rate was the penultimate class of warships in a hierarchal system of six "ratings" based on size and firepower.-Rating:...

 frigate of the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

 launched in 1782. In 1795 she captured the French storeships Prevoyante and Raison; and in 1801 took part in Lord Keith's expedition to Egypt; in 1809 assisted in cutting out the French 16-gun man-of-war Nisus at Guadeloupe

Guadeloupe

Guadeloupe is an archipelago located in the Leeward Islands, in the Lesser Antilles, with a land area of 1,628 square kilometres and a population of 400,000. It is the first overseas region of France, consisting of a single overseas department. As with the other overseas departments, Guadeloupe...

, and took part in the storming of the batteries at Anse à la Barque. In 1810 Thetis took part in the capture of Guadeloupe. She was sold in 1814.