HMS Viper was a six-gun Cockatrice-class schooner built for the Royal Navy during the 1830s.

The ship's tonnage was 181 35/94 tons burthen.

[1] The Cockatrice class was armed with two 6-pounder cannon and four 12-pounder carronades.

The ships had a crew of 33–42 officers and ratings.

[2] Viper, the twelfth ship of her name to serve in the Royal Navy,[3] was ordered on 11 September 1828, laid down in June 1820 at Pembroke Dockyard, Wales, and launched on 12 May 1831.