HMS Hindostan (variously Hindustan) was a 50-gun two-decker fourth rate of the Royal Navy. She was originally a teak-built East Indiaman named Admiral Rainier that the Royal Navy brought into service in May 1804. Perhaps her best known voyage was her trip to Australia in 1809 when she and Dromedary brought Governor Lachlan Macquarie to replace Governor William Bligh after the Rum Rebellion.