There are 15 mathematicians whose last name begin with SIRA.
| Siracusa, Giovana | Universidade Federal de Pernambuco, Recife | 2012 |
| Siraj, Dejan | University of Warwick | 2015 |
| Siraj-Dine, Sami | École Nationale des Ponts et Chaussées | 2020 |
| Sirakaya, Sibel | University of Wisconsin-Madison | 2003 |
| Sirakov, Boyan | Université Pierre-et-Marie-Curie - Paris VI | 2000 |
| Siran, Jozef | Comenius University | 1983 |
| Siran, Li | University of Oxford | 2017 |
| Širaň, Michal | Université de Genève | 2015 |
| Sirandzhur, Rakhman | Kiev State University | 1975 |
| Siranosian, Antranik | University of California, San Diego | 2009 |
| Sira-Ramírez, Hebertt | Massachusetts Institute of Technology | 1977 |
| Sirashdinov, Sagdy | ||
| Siratt, John | University of Notre Dame | 2024 |
| Siraya, Tatiana | Steklov Institute of Mathematics | 1977 |
| Sirazhdinov, Sagdy | Lomonosov Moscow State University | 1953 |