HMS Viper (1807)

HMS Viper was launched at Cowes in 1805 as the mercantile schooner Princess Charlotte. The Royal Navy purchased her in 1807. Lieutenant William Towning commissioned her. On 9 (or 18) February 1809 she sailed from Cadiz for Gibraltar. She never arrived and was presumed to have foundered with all hands.

She was carrying as a passenger Robert Arbuthnot, the former Chief Secretary in Ceylon.