Redfern, William (1778?-1833), worked to gain full rights for emancipists (pardoned convicts) during the early days of settlement in New South Wales, Australia. In 1801, Redfern was transported to New South Wales for his part in a mutiny of Royal Navy ships at the River Nore. In 1803, he received a full pardon. He worked for a time as a surgeon on Norfolk Island. He returned to Sydney in 1808. He worked at Dawes Point Hospital, then became the doctor to governors William Bligh and Lachlan Macquarie.
Redfern became a close friend of Macquarie, who sent him to the United Kingdom with a petition regarding the emancipists in New South Wales. After 1824, Redfern worked chiefly at farming. Redfern was born in Wiltshire, England. He died in Edinburgh, Scotland, in July 1833.