HMS Avenger was a wooden paddle wheel frigate of the Royal Navy launched in 1845 and wrecked with heavy loss of life in 1847.

Avenger was built to a design by Sir William Symonds that was approved on 25 March 1844.

She was armed with 10 guns and was initially rated as a first-class frigate, though this was later reduced on 31 July 1846 to a second-class.

[2] In a list of the British naval force in Portugal in late 1847, the Avenger is indeed mentioned with only 6 guns.

Avenger sailed from Gibraltar on 17 December 1847 bound for Malta and commanded by Captain Charles Elers Napier, stepson of Rear Admiral Sir Charles Napier who was then commanding the Channel Fleet.