HMS Hecate was a Royal Navy 18-gun Cruizer-class brig-sloop, built by John King at Upnor and launched in 1809.

[1] In 1810, Lieutenant George Rennie became acting commander and Hecate was detailed for service with the squadron under Admiral Albemarle Bertie engaged in the Invasion of Île de France.

[1] From 3 August she was part of the fleet involved in the invasion of Java, which ended with the surrender of Dutch and French forces on 16 September.

At some point in 1812 pirates from the Sultanate of Sambas, in western Borneo, captured nine sailors from Hecate and killed or enslaved them, after cutting their hamstrings or otherwise mutilating them.

In 1821, while under the command of Captain I. Esmond, her crew mutinied and refused to go to sea until they had received their back pay and prize money.