John Saville Zamet FDS (11 November 1932 - 5 May 2007) was a periodontist in the United Kingdom. He established the first exclusively periodontal practice in London in 1966. After he retired, he attended the University College Hospital and took a course in Holocaust studies, leading him to write the biographies of refugee dental surgeons in the UK, and assess their skills as a missed opportunity for improving the ordinary quality of interwar British dental surgery. He died shortly after completing his PhD thesis on German and Austrian Refugee Dentists 1933–1945, The Response of The British Authorities in 2007. His PhD degree was awarded posthumously and his thesis remains unpublished.