HMS Emulous was a Royal Navy 18-gun Cruizer-class brig-sloop, built by William Row at Newcastle and launched in 1806.

[2] On 25 July 1811, Emulous captured the French letter of marque Adele, which was pierced for 16 guns but only carried two.

She had left Boston on 24 June and had made only one capture, albeit an important one, Mary Jane, of Greenock, which had been sailing from Jamaica to Quebec.

[13][d] On 2 August 1812 Colibri met up with Emulous and reported that an American privateer was said to be sheltering nearby.

It reprimanded Lieutenant Thomas Fowler, the officer of the watch, for failing to send for the pilot when they came into shallow water.