| Haddock, Jamie | Dept. Math. UCLA, USA | Algebraic and geometric methods in optimization. Presenter |
| Hahn, Marvin | Goethe Universität Frankfurt | Computational tropical geometry Computational tropical geometry Presenter |
| Hall, Georgina | INSEAD, Paris, France | Polynomial optimization and its applications Presenter |
| Halverson, Jim | Northeastern | Algebraic geometry, data science and fundamental physics Presenter |
| Hanjie, Pan | EPFL | Stability of moment problems and super-resolution imaging Presenter |
| Harkonen, Marc | Georgia Tech | Algebraic statistics Presenter |
| Harms, Michael | University of Oregon, USA | Fitness landscapes and epistasis Presenter |
| Harrington, Heather | University of Oxford | Algebraic geometry in topological data analysis Algebraic geometry, data science and fundamental physics Chair Geometry and topology in applications. Chair Geometry and topology in applications. Chair |
| Harris, Corey | University of Oslo, Norway | Polynomial optimization and its applications |
| Hauenstein, Jonathan D. | University of Notre Dame | Algebraic geometry for kinematics, mechanism science, and rigidity Euclidean distance geometry and its applications Presenter Numerical methods for structured polynomial system solving Algebraic geometry in topological data analysis |
| He, Yang-Hui | City, University of London, Oxford University & Nankai | Algebraic geometry, data science and fundamental physics Chair Algebraic geometry, data science and fundamental physics Presenter |
| Heil, Wolfgang | FSU | From algebraic geometry to geometric topology: Crossroads on applications From algebraic geometry to geometric topology: Crossroads on applications Presenter |
| Helmer, Martin | Australian National University | Intersections in practice Chair Intersections in practice Presenter |
| Henrion, Didier | CNRS-LAAS, Toulouse, France | Polynomial optimization and its applications Sparsity in polynomial systems and applications |
| Hering, Milena | University of Edinburgh | Computations in algebraic geometry Presenter |
| Hernando, Fernando | Universidad Jaume I | Coding theory and cryptography Presenter |
| Herschel Giansiracusa, Jeffrey | Swansea | New developments in matroid theory Presenter |
| Hess, Florian | University of Oldenburg | Isogenies in Cryptography Presenter |
| Hess, Kathryn | EPFL, Switzerland | Algebraic geometry in topological data analysis Presenter |
| Hess Bellwald, Kathryn | Laboratory for topology and neuroscience, EPFL, Switzerland | Applications of topology in neuroscience Chair Applications of topology in neuroscience Chair Kathryn Hess Bellwald: Topological adventures in neuroscience |
| Hijzai, Hassan | Los Alamos National Laboratory, Los Alamos, NM, USA | Polynomial optimization and its applications |
| Hill, Cvetelina | Georgia Tech | Computational tropical geometry |
| Hiraoka, Yasu | Kyoto University | Geometry and topology in applications. Presenter |
| Holweck, Frédéric | University of Bourgogne Franche-Comté | Applications of Algebraic geometry to quantum information Chair Applications of Algebraic geometry to quantum information Chair |
| Horlemann, Anna-Lena | University of St. Gallen | Algebraic Geometry Codes Chair Algebraic Geometry Codes Chair Algebraic Geometry Codes Chair |
| Horlemann-Trautmann, Anna-Lena | University of St. Gallen | Coding theory and cryptography Presenter Network coding and subspace designs Chair Network coding and subspace designs Chair |
| Horobet, Emil | Sapientia Hungarian University | Random geometry and topology Presenter |
| Hosten, Serkan | SFSU | Algebraic statistics Presenter |
| Hou, Qing-Hu | Tianjin University | Symbolic Combinatorics Presenter |
| Huang, Qixing | The University of Texas at Austin | Numerical differential geometry Presenter |
| Huang, Wen | Xiamen University | Numerical differential geometry Presenter |
| Hughes, Thomas | The University of Texas at Austin | Multivariate spline approximation and algebraic geometry |
| Huiberts, Sophie | CWI, Amsterdam | Algebraic and geometric methods in optimization. Presenter |
| Hulpke, Alexander | Colorado State University | Computational aspects of finite groups and their representations Presenter |