Michael Ellis Fisher (3 September 1931 – 26 November 2021) was an English physicist, as well as chemist and mathematician, known for his many seminal contributions to statistical physics, including but not restricted to the theory of phase transitions and critical phenomena. He was the Horace White Professor of Chemistry, Physics, and Mathematics at Cornell University. Later he moved to the University of Maryland College of Computer, Mathematical, and Natural Sciences, where he was University System of Maryland Regents Professor, a Distinguished University Professor and Distinguished Scholar-Teacher.