There are 75 mathematicians whose last name begin with SAY.
| Say, A. C. Cem | Boğaziçi University | 1992 |
| Say, Fatih | University of Nottingham | 2016 |
| Saya, Henri | Université Joseph Fourier Grenoble I | 1975 |
| Sayad, Lamri | Université de M'sila | 2016 |
| Sayag, Eitan | Tel Aviv University | 2002 |
| Sayag, Roiy | Harvard University | 2009 |
| Sayah, Hafid | Université Montpellier II | 1983 |
| Sayah, John | University of Wisconsin-Madison | 1988 |
| Sayah, Karima | Université Claude Bernard Lyon 1 | 2018 |
| Sayah, Karima | Université de Lyon | 2018 |
| Sayah, Toni | École Polytechnique | 1998 |
| Sayana, Krishna-Kamal | Purdue University | 2005 |
| Sayar, Ahmet | Middle East Technical University | 2009 |
| Sayas, Francisco-Javier | Universidad de Zaragoza | 1994 |
| Sayas Bordonaba, Flora | Universidad Publica de Navarra | 2015 |
| Sayavedra, Alyssa | University of California, Berkeley | 2016 |
| Say-awen, April Lynne | Ateneo de Manila University | 2016 |
| Saydam, Azime | University of Nebraska-Lincoln | 1998 |
| Saydi, Hadiseh | Tarbiat Modares University | 2022 |
| Saydy, Lahcen | University of Maryland College Park | 1988 |
| Sayed, Ali | Stanford University | 1992 |
| Sayed, Amir | Carleton University | 2014 |
| Sayed, Mohamed | University of Birmingham | 1998 |
| Sayed, Mohammed | Universitat Rovira i Virgili | 2022 |
| Sayed Ahmed, Amr | Universität Bremen | 2017 |
| Sayed Khalkhali, Ashraf | Tafresh University | 2017 |
| Sayed Salehi, Mohammad Reza | Tafresh University | 2016 |
| Sayeed, Akbar | University of Illinois at Urbana-Champaign | 1996 |
| Sayeed, Hasan | Texas A&M University | 1995 |
| Sayeed, Zulfiquar | University of Pennsylvania | 1996 |
| Sayegh, Arwa | University of Leeds | 2017 |
| Sayeh, Awatef | ||
| Sayeki, Hidemitsu | ||
| Sayem el Daher, Mohammad | Université de Paris | 1960 |
| Sayer, Aline | Harvard University | 1992 |
| Sayer, Tilman | Technische Universität Kaiserslautern | 2012 |
| Sayers, Bruce | Imperial College London | 1957 |
| Sayers, Chera | University of Wisconsin-Madison | 1986 |
| Sayers, Dale | University of Washington | 1971 |
| Saygi, Zulfukar | Middle East Technical University | 2007 |
| Saygin, Erdinc | Australian National University | 2007 |
| Sayginsoy, Özgen | Cornell University | 2004 |
| Sayi, Mbani T. | University of the Western Cape | 2020 |
| Sayin, Serpil | University of Florida | 1992 |
| Sayir, Jossy | ETH Zürich | 1999 |
| Sayir, Mahir | ETH Zürich | 1968 |
| Sayit, Hasan | Cornell University | 2005 |
| Sayizonga, Aimable | University of Kinshasa | 2012 |
| Saykally, Richard | University of Wisconsin-Madison | 1977 |
| Sayle, Roger | The University of Edinburgh | 1993 |
| Sayler, John | University of Michigan | 1985 |
| Sayli, Mustafa | University of Nottingham | 2021 |
| Saylor, Annie | University of Kentucky | 1979 |
| Saylor, Dwight | University of Rochester | 1962 |
| Saylor, John | ||
| Saylor, Paul | Rice University | 1968 |
| Saylor, Richard | Rice University | 1966 |
| Saymah, Sadi | Middle East Technical University | 1975 |
| Sayood, Khalid | ||
| Sayrafi, Mahrud | University of Minnesota - Twin Cities | 2024 |
| Sayrafiezadeh, Mahmoud | University of Minnesota - Twin Cities | 1969 |
| Sayre, David | George Mason University | 2023 |
| Sayre, Edward | University of Texas at Austin | 1999 |
| Sayre, Herbert | The Johns Hopkins University | 1896 |
| Sayre, John | University of Western Ontario | 1982 |
| Sayrs, Lois | Northwestern University | 1985 |
| Sayward, Frederick | Brown University | 1976 |
| Sayyad Shirabad, Jelber | University of Ottawa | 2003 |
| Sayyar, Hassan | Kansas State University | 1994 |
| Sayyari, Mohammed | King Abdullah University of Science and Technology | 2022 |
| Sayyari, Yamin | Shahid Bahonar University | 2016 |
| Sayyary Namin, Mahsa | Max-Planck Institute for Mathematics in the Sciences, Leipzig | 2021 |
| Sayyary Namin, Mahsa | Universität Leipzig | 2021 |
| Sayyid Hosseini, Babak | Technische Universität Dortmund | 2021 |
| Sayyou, Hamza | Université Hassan II de Casablanca | 2025 |