Martin Grohe (born 1967)^[1] is a German mathematician and computer scientist known for his research on parameterized complexity, mathematical logic, finite model theory, the logic of graphs, database theory, and descriptive complexity theory. He is a University Professor of Computer Science at RWTH Aachen University, where he holds the Chair for Logic and Theory of Discrete Systems.^[2]

Grohe earned his doctorate (dr. rer. nat.) at the University of Freiburg in 1994. His dissertation, The Structure of Fixed-Point Logics, was supervised by Heinz-Dieter Ebbinghaus.^[3] After postdoctoral research at the University of California, Santa Cruz and Stanford University, he earned his habilitation at the University of Freiburg in 1998.^[4]

Grohe is the author of Descriptive Complexity, Canonisation, and Definable Graph Structure Theory (Lecture Notes in Logic 47, Cambridge University Press, 2017).^[5] In 2011, Grohe and Johann A. Makowsky published as editors the 558th proceedings of the AMS-ASL special session on Model Theoretic Methods in Finite Combinatorics, which was held on January 5-8 2009 in Washington, DC. With Jörg Flum, he is the co-author of Parameterized Complexity Theory (Springer, 2006).^[6]

• Grohe, Martin (17 August 2017). Descriptive Complexity, Canonisation, and Definable Graph Structure Theory. Cambridge University Press. doi:10.1017/9781139028868. ISBN 978-1-107-01452-7. S2CID 125568998.
• Grohe, Martin; Makowsky, Johann A. (2011). Model Theoretic Methods in Finite Combinatorics: AMS-ASL Joint Special Session, January 5-8, 2009, Washington, DC. Vol. 558. Washington, DC: American Mathematical Soc. ISBN 978-0-8218-4943-9.
• Flum, Jörg; Grohe, M. (2006). Parameterized complexity theory. Berlin: Springer. ISBN 978-3-540-29953-0. OCLC 262692167.

Grohe won the Heinz Maier–Leibnitz Prize awarded by the German Research Foundation in 1999.^[4] He was elected as an ACM Fellow in 2018 for "contributions to logic in computer science, database theory, algorithms, and computational complexity".^[7]