Sharon Jayne Peacock CBE FMedSci MRCP (born 24 March 1959) is a British microbiologist who is Professor of Public Health and Microbiology in the Department of Medicine at the University of Cambridge. She is known for her work on the use of microbial whole genome sequencing in diagnostic and public health microbiology, particularly on the bacterium Burkholderia pseudomallei and on methicillin-resistant Staphylococcus aureus (MRSA).