| Last Name | First Name | Year | City Sort descending | Section/Speaker Type |
|---|---|---|---|---|
| Katz | Nicholas M. | 1970 | Nice | Algebra |
| Keisler | H. Jerome | 1970 | Nice | Plenary |
| Kesten | Harry | 1970 | Nice | Analysis |
| Kiehl | Reinhardt | 1970 | Nice | Analysis |
| Kirby | R. C. | 1970 | Nice | Geometry & Topology |
| Kleiman | Steven L. | 1970 | Nice | Algebra |
| Kobayashi | Shoshichi | 1970 | Nice | Geometry & Topology |
| Koecher | Max | 1970 | Nice | Algebra |
| Kostant | B. | 1970 | Nice | Analysis |
| Kostrikin | A. I. | 1970 | Nice | Algebra |
| Kubota | Tomio | 1970 | Nice | Algebra |
| Kuiper | N. H. | 1970 | Nice | Geometry & Topology |
| Kuranishi | Masatake | 1970 | Nice | Geometry & Topology |
| Kuroda | S. T. | 1970 | Nice | Analysis |
| Langlands | R. P. | 1970 | Nice | Geometry & Topology |
| Lashof | R. | 1970 | Nice | Geometry & Topology |
| Lawvere | F. W. | 1970 | Nice | Algebra |
| Lax | Peter D. | 1970 | Nice | Analysis |
| Levine | J. P. | 1970 | Nice | Geometry & Topology |
| Levitan | B. M. | 1970 | Nice | Analysis |
| Lindenstrauss | Joram | 1970 | Nice | Analysis |
| Lions | J. L. | 1970 | Nice | Analysis |
| Lojasiewicz | S. | 1970 | Nice | Geometry & Topology |
| Lopez De Medrano | Santiago | 1970 | Nice | Geometry & Topology |
| Macdonald | I. G. | 1970 | Nice | Geometry & Topology |