Sir Peter James Donnelly FRS FMedSci is an Australian-British mathematician and Professor of Statistical Science at the University of Oxford, and the CEO of Genomics PLC. He is a specialist in applied probability and has made contributions to coalescent theory. His research group at Oxford has an international reputation for the development of statistical methodology to analyze genetic data.

Peter Donnelly is an expert in probability theory who applies statistical methods to genetic data — spurring advances in disease treatment and insight on our evolution. He's also an expert on DNA analysis, and an advocate for sensible statistical analysis in the courtroom.