| Last Name | First Name | Year | City Sort ascending | Section/Speaker Type |
|---|---|---|---|---|
| Candes | Emmanuel | 2006 | Madrid | Applications of Mathematics in the Sciences |
| Caselles | Vicent | 2006 | Madrid | Applications of Mathematics in the Sciences |
| Cattaneo | Alberto S. | 2006 | Madrid | Mathematical Physics |
| Cerf | Rafael | 2006 | Madrid | Probability and Statistics |
| Chai | Ching-Li | 2006 | Madrid | Number Theory |
| Chen | Zhiming | 2006 | Madrid | Numerical Analysis and Scientific Computing |
| Cheng | Shiu-Yuen | 2006 | Madrid | Mathematics Education and Popularization of Mathematics |
| Choquet-Bruhat | Yvonne | 2006 | Madrid | ICM Emmy Noether Lecture |
| Corry | Leo | 2006 | Madrid | History of Mathematics |
| Crawley-Boevey | William | 2006 | Madrid | Algebra |
| Darmon | Henri | 2006 | Madrid | Number Theory |
| de la Llave | Rafael | 2006 | Madrid | Ordinary Differential Equations and Dynamical Systems |
| de Lange | Jan | 2006 | Madrid | Mathematics Education and Popularization of Mathematics |
| de Shalit | Ehud | 2006 | Madrid | Mathematics Education and Popularization of Mathematics |
| Deift | Percy | 2006 | Madrid | Plenary |
| Demailly | Jean-Pierre | 2006 | Madrid | Plenary |
| Dembo | Amir | 2006 | Madrid | Probability and Statistics |
| Derrida | Bernard | 2006 | Madrid | Mathematical Physics |
| DeVore | Ronald | 2006 | Madrid | Plenary |
| Dolgopyat | Dmitry | 2006 | Madrid | Ordinary Differential Equations and Dynamical Systems |
| Donnelly | Peter | 2006 | Madrid | Probability and Statistics |
| Downey | Rod | 2006 | Madrid | Logic and Foundations |
| du Sautoy | Marcus | 2006 | Madrid | Algebra |
| Durán | Ricardo | 2006 | Madrid | Numerical Analysis and Scientific Computing |
| Dyn | Nira | 2006 | Madrid | Numerical Analysis and Scientific Computing |