Mogens Høgh Jensen (born March 2, 1955) is a Danish physicist who has made contributions to the fields of complex dynamics and fractals. He currently holds a professorship at the Niels Bohr Institute, University of Copenhagen and is the president of the Royal Danish Academy of Science and Letters. He received his master degree in 1981, with professor Per Bak as supervisor. His master project was about “Theory of Helical Magnetic Structure and Phase Transitions” which was later devoted a chapter in L. D. Landau and E. M. Lifshitz, ”Electrodynamics of Continuous Media” (Chap. 52).