Thomas Worsnop (2 February 1821 – 24 January 1898) was an Australian colonial militia, historian, local government official and town clerk.
Worsnop was born in Wortley, Yorkshire, England and died in North Adelaide, South Australia.
Somewhat surprisingly, given his previous failures, Worsnop proved to be a good administrator and he was able to reduce the debt of the City Council.
In 1878 he wrote the detailed History of the City of Adelaide and later had published several papers on Aboriginal artefacts and weapons.
He is commemorated with the naming in his honour of Mount Worsnop in the Gibson Desert of Western Australia by Sir John Forrest on 15 July 1874.