D'Arcy Wentworth (14 February 1762 – 7 July 1827) was an Irish surgeon, the first paying passenger to arrive in the new colony of New South Wales. He served under the first seven governors of the Colony, and from 1810 to 1821, he was great assistant to Governor Lachlan Macquarie. Wentworth led a campaign for the rights and recognition of emancipists and for trial by jury.