Stephen Andrew Bustin (born 1954)[1] is a British scientist, former professor of molecular sciences at Queen Mary University of London from 2004 to 2012, as well as visiting professor at Middlesex University, beginning in 2006.[2][3] In 2012 he was appointed Professor of Allied Health and Medicine at Anglia Ruskin University.[4] He is known for his research into polymerase chain reaction, and has written a book on the topic, entitled A-Z of Quantitative PCR. This book has been called "the bible of qPCR."[5]