Bryan Sykes (born 9 September 1947) is a Professor of Human Genetics at the University of Oxford and a Fellow of Wolfson College. Sykes published the first report on retrieving DNA from ancient bone (Nature, 1989). Sykes has been involved in a number of high-profile cases dealing with ancient DNA, including those of Ötzi the Iceman and Cheddar Man, and others concerning people claiming to be members of the Romanovs, the Russian royal family. His work also suggested a Florida accountant by the name of Tom Robinson was a direct descendant of Genghis Khan, a claim that was subsequently disproved. Sykes is best known outside the community of geneticists for his bestselling books on the investigation of human history and prehistory through studies of mitochondrial DNA. He is also the founder of Oxford Ancestors, a genealogical DNA testing firm.