| Date | Speaker(s) | Title |
| 22 Jan 2009 | Alexander Shen, University of Marseille and Institute for Information Transmission Problems, Moscow | Algorithmic randomness |
| 29 Jan 2009 | David Vogan, MIT | Signatures of Hermitian forms and unitary representations |
| 5 Feb 2009 | Dror Bar-Natan, University of Toronto | (u, v, and w knots) x (topology, combinatorics, low algebra, and high algebra) |
| 12 Feb 2009 | Victor Ivrii, University of Toronto | Dynamics and Spectral Asymptotics |
| 26 Feb 2009 | Walter Craig, McMaster University | On the dimension of the Navier - Stokes singular set |
| 5 Mar 2009 | Sergey Fomin, University of Michigan | Cluster algebras |
| 19 Mar 2009 | Helmut Hofer, Courant Institute | Periodic orbits in symplectic geometry and the Weinstein Conjecture |
| 2 Apr 2009 | Camillo de Lellis, University of Zurich | h-Principle and fluid dynamics |
| 9 Apr 2009 | Lizhen Ji, University of Michigan | Coarse Schottky Problem |
| 23 Apr 2009 | Ken Stephenson, University of Tennessee | Spontaneous Geometry: from Circles to Conformal Structure to Brain Imaging |
| 30 Apr 2009 | F. Nazarov, University of Wisconsin | Zeroes of random analytic functions |
| 3 Sep 2009 | Ilia Itenberg, University of Strasbourg and MSRI | Tropical Welschinger invariants |
| 17 Sep 2009 | Claude Roger, University of Lyon | NEW TRENDS IN INFINITE DIMENSIONAL GROUPS IN PHYSICS |
| 24 Sep 2009 | Matthias Weber, Indiana University | Minimal Surfaces of Small Genus |
| 1 Oct 2009 | Emmanuel Kowalski, ETH, Zurich | Sieves and their applications |
| 8 Oct 2009 | Bakh Khoussainov, University of Auckland, New Zealand, and Cornell University | A journey into computable structures |
| 15 Oct 2009 | Frederick Cohen, University of Rochester | Generalized moment-angle complexes |
| 22 Oct 2009 | Boris Khesin, University of Toronto | Holomorphic linking numbers |
| 29 Oct 2009 | G. Forni, University of Maryland | Invariant distribution and scaling for parabolic flows |
| 12 Nov 2009 | Robert Ghrist, University of Pennsylvania | Euler Integration for Data |
| 19 Nov 2009 | S. Bolotin, University of Wisconsin and Moscow Steklov Mathematical Institute | Second species solutions of the 3 body problem |
| 3 Dec 2009 | S. Weinberger, University of Chicago | Poincare duality and aspherical manifolds |