Arniston was an East Indiaman that made eight voyages for the British East India Company (EIC). She was wrecked on 30 May 1815 during a storm at Waenhuiskrans, near Cape Agulhas, South Africa, with the loss of 372 lives only six on board survived. She had been chartered as a troopship and was underway from Ceylon to England on a journey to repatriate wounded soldiers from the Kandyan Wars.

Controversially, the ship did not have a marine chronometer on board, a comparatively new navigational instrument that was an "easy and cheap addition to her equipment" that would have enabled her to determine her longitude accurately. Instead, she was forced to navigate through the heavy storm and strong currents using older, less reliable navigational aids and dead reckoning. Navigational difficulties and a lack of headway led to an incorrect assumption that Cape Agulhas was Cape Point. Consequently, Arniston was wrecked when her captain headed north for St Helena, operating on the incorrect belief the ship had already passed Cape Point.

East Indiaman was a general name for any sailing ship operating under charter or licence to any of the East India trading companies of the major European trading powers of the 17th through the 19th centuries. The term is used to refer to vessels belonging to the Austrian, Danish, Dutch, English, French, Portuguese, or Swedish companies.

Some of the East Indiamen chartered by the British East India Company were known as "tea clippers".In Britain, the Honourable East India Company held a monopoly granted to it by Queen Elizabeth I of England in 1600 for all English trade between the Cape of Good Hope and Cape Horn, which was progressively restricted during the late 18th and early 19th centuries, until the monopoly was lost in 1834. English (later British) East Indiamen usually ran between England, the Cape of Good Hope and India, where their primary destinations were the ports of Bombay, Madras and Calcutta. The Indiamen often continued on to China before returning to England via the Cape of Good Hope and Saint Helena. When the company lost its monopoly, the ships of this design were sold off. A smaller, faster ship known as a Blackwall Frigate was built for the trade as the need to carry heavy armaments declined.