Robert A. J. Matthews (born 23 September 1959), is a British physicist and science writer.
After graduating in physics at Corpus Christi College, Oxford University, in 1981, Matthews took up a dual career in science writing and academic research.
He is currently science consultant and columnist for the science magazine BBC Focus, a freelance columnist for The National in Abu Dhabi and visiting professor in the Department of Mathematics, Aston University.
In addition, he has written on a freelance basis for, among others, New Scientist, The Economist, The Financial Times, Reader's Digest and The Spectator.
Matthews has published research in refereed journals on a wide variety of subjects ranging from Bayesian inference and probability to astronomy, cryptology and neural computing.