There are 10 mathematicians whose last name begin with COSTI.
| Costi, Claudio | University of Victoria | 2001 |
| Costi, Elliot | University of London | 2009 |
| Costich, Oliver | Michigan State University | 1969 |
| Costigan, Timothy | University of Pittsburgh | 1988 |
| Costin, Ovidiu | Rutgers University, New Brunswick | 1995 |
| Costin, Rodica | Rutgers University, New Brunswick | 1997 |
| Costiner, Sorin | Weizmann Institute of Science | 1995 |
| Costinescu, Olga | ||
| Costinescu, Roxana | Portland State University | 1997 |
| Costinot, Arnaud | Princeton University | 2005 |