There are 26 mathematicians whose last name begin with ISSS.
| Issa, Abdulcadir | Howard University | 1988 |
| Issa, Ahmad | University of California, Berkeley | 1989 |
| Issa, Ali | Université de Toulon | 2022 |
| Issa, Bassam | Southern Illinois University at Carbondale | 1991 |
| Issa, Hassan | Georg-August-Universität Göttingen | 2012 |
| Issa, Leila | Rice University | 2010 |
| Issa, May | Université Mulhouse | 2008 |
| Issa, Razanne | Université Bordeaux 1 | 2015 |
| Issa, Samar | Université de La Rochelle | 2011 |
| Issa, Samar | Lebanese University | 2011 |
| Issaadi, Badredine | Université de Boumerdes | 2017 |
| Issaadi, Hayat | Université des sciences et de la technologie Houari-Boumediene | 2022 |
| Issa Alaa Aldine, Ahmad | Lebanese University | 2020 |
| Issa Alaa Aldine, Ahmad | Université de Bretagne-Sud | 2020 |
| Issadore, David | Harvard University | 2009 |
| Issaka, Aziz | North Dakota State University | 2018 |
| Issamu Hirata, Guilherme | Pontifícia Universidade Católica do Rio Grande do Sul | 2014 |
| Issaoui, Abderrahman | Gottfried Wilhelm Leibniz Universität Hannover | 2014 |
| Issar, Sunil | Carnegie Mellon University | 1991 |
| Issard-Roch, Françoise | Université Claude Bernard Lyon 1 | 1984 |
| Issel, Walter | Humboldt-Universität zu Berlin | 1968 |
| Isselkou, Ould | Université d'Orléans | 1991 |
| Issmail, Elhallaoui | ||
| Issoglio, Elena | Friedrich-Schiller-Universität Jena | 2012 |
| Issos, James | Auburn University | 1966 |
| Issoufou, Salifou | University of California, Berkeley | 2011 |