There are 4 mathematicians whose last name begin with SSEIN.
| Sein, Hla | University of Illinois at Urbana-Champaign | 1970 |
| Seinfeld, John | Princeton University | 1967 |
| Seinsche, Dieter | Johann Wolfgang Goethe-Universität Frankfurt am Main | 1973 |
| Seinstra, Frank | Universiteit van Amsterdam | 2003 |