Blackwall frigate was the colloquial name for a type of three-masted full-rigged ship built between the late 1830s and the mid-1870s. They were originally intended as replacements for the British East Indiaman in the trade between England, the Cape of Good Hope, India and China, but from the 1850s were also employed in the trade between England, Australia and New Zealand. Both types became superseded as passenger-carrying vessels by steamships during the 1870s and later sailing ships of the type colloquially called windjammers were built for cargo carrying only.