| Last Name Sort descending | First Name | Year | City | Section/Speaker Type |
|---|---|---|---|---|
| Roy | S. N. | 1950 | Cambridge (USA) | Prob & Stats |
| Santalo | L.A. | 1950 | Cambridge (USA) | Geometry & Topology |
| Schwartz | L. | 1950 | Cambridge (USA) | Plenary/Prize winner |
| Segre | B. | 1950 | Cambridge (USA) | Geometry & Topology |
| Selberg | A. | 1950 | Cambridge (USA) | Algebra & Theory of Numbers/Prize winner |
| Skolem | Th. | 1950 | Cambridge (USA) | Logic & Philosophy |
| Tarski | A. | 1950 | Cambridge (USA) | Logic & Philosophy |
| von Neumann | J. | 1950 | Cambridge (USA) | Plenary |
| Wald | A. | 1950 | Cambridge (USA) | Plenary |
| Weil | A. | 1950 | Cambridge (USA) | Algebraic Geometry |
| Whitney | H. | 1950 | Cambridge (USA) | Plenary |
| Wiener | N. | 1950 | Cambridge (USA) | Plenary |
| Wilder | R. L. | 1950 | Cambridge (USA) | Plenary |
| Zariski | O. | 1950 | Cambridge (USA) | Algebraic Geometry |