HMS Ferret was a Royal Navy Cruizer-class brig-sloop built by Benjamin Tanner at Dartmouth and launched in 1806, 19 months late.

On 23 August 1807, Ferret, in company with Lark, captured the French privateer schooner Mosquito, out of Santo Domingo.

The schooner was named Becune, and she was armed with one long 9-pounder gun amidships and two carronades, and carried a crew of 38 men.

The court martial reprimanded the Master, Charles Lupton, for failing to keep track of her position and sentenced him to the loss of one year's seniority.

A press gang picked up three of the deserters, who received sentences of 100 lashes on their bare backs with a cat o' nine tails.