Indispensable was a sailing ship built in France and launched in 1791. She was captured in 1793 at the outbreak of the French Revolutionary Wars and thus came into British hands, keeping her name (occasionally reported as Indispensible). She performed two voyages for the British East India Company (EIC) between 1793 and 1797. During this period and later she made two voyages transporting convicts to New South Wales. Amongst her notable events were the discovery of Indispensable Strait (1794), the capture of a Spanish vessel (1798), and the rescue of some castaways (1814). She later went on serve as a whaler in the South Seas until autumn 1827. She ceased trading after this last voyage and was broken up by April 1830.