There are 4 mathematicians whose last name begin with TSAG.
| Tsagaris, Theodoros | Imperial College London | 2010 |
| Tsagas, Christos | University of Sussex | 1999 |
| Tsagkarogiannis, Dimitrios | University of Massachusetts Amherst | 2005 |
| Tsagkias, Manos | Universiteit van Amsterdam | 2012 |