Windsor Castle was a passenger/cargo ship built by William Pile, Sunderland, in 1857 for Richard Green. This ship sailed between England and Australia. The Queensland Migrant Shipping records show passenger travel activity between 1877 and 1881. After being extensively overhauled in July 1882, the vessel was sometimes engaged by the government to transport troops to Zanzibar and Sydney. In 1876, the Windsor Castle was captained by N. Harrison. She foundered at Algoa Bay in 1884.