Martin Edward Dyer (born 16 July 1946 in Ryde, Isle of Wight, England) is a professor in the School of Computing at the University of Leeds, Leeds, England. He graduated from the University of Leeds in 1967, obtained his MSc from Imperial College London in 1968 and his PhD from the University of Leeds in 1979. His research interests lie in theoretical computer science, discrete optimization and combinatorics. Currently, he focuses on the complexity of counting and the efficiency of Markov chain algorithms for approximate counting.