Sarah Joanne Clackson (née Quinn) (11 December 1965 – 10 August 2003) was a British Coptologist; she was Britain's foremost Coptologist. Born in Leicester, she was educated at Loughborough High School and St John's College, Cambridge where she studied classics and Egyptology. She obtained a PhD from UCL in 1996; her PhD at University College London was completed in four years, resulting in her first major book, Coptic and Greek texts Relating to the Hermopolite Monastery of Apa Apollo (2000). At the same time, she was working as Project Officer for the Manichaean Documentation Centre based first at the Institute of Classical Studies, London, and then at Warwick University; The Dictionary of Manichaean Texts, volume i, Texts from the Roman Empire (1998), bears her name among its authors, as