SS Admella was an Australian passenger steamship that was shipwrecked off the coast of the colony of South Australia in 1859. It broke up after striking a submerged reef near Cape Banks, off the coast near Carpenter Rocks, southwest of Mount Gambier, in the early hours on 6 August 1859. Survivors clung to the wreck for over a week and many people took days to die as they glimpsed the land from the sea and watched as one rescue attempt after another failed.