There are 14 mathematicians whose last name begin with HAYS.
| Hays, Bill | Northwestern University | 1970 |
| Hays, Christopher | Michigan State University | 2013 |
| Hays, James | University of Missouri - Columbia | 1971 |
| Hays, James | Carnegie Mellon University | 2009 |
| Hays, John | Purdue University | 1940 |
| Hays, Jude | University of Minnesota - Twin Cities | 2000 |
| Hays, Michael | University of Colorado at Boulder | 1973 |
| Hays, Sally | University of Oregon | 1999 |
| Hays, Thomas | University of Tennessee - Knoxville | 1971 |
| Hays, William | University of California, Los Angeles | 1970 |
| Hays, William | University of Michigan | 1955 |
| Hays, IV, Mark | University of Arizona | 1995 |
| Hayslett, Jr., Homer | Dartmouth College | 1976 |
| Hayslip, Iris | State University of New York at Stony Brook | 1982 |