There are 5 mathematicians whose last name begin with BIRT.
| Birta, Louis | Case Institute of Technology | 1965 |
| Birtcher, Robert | University of Illinois at Urbana-Champaign | 1975 |
| Birtea, Iosif | École Polytechnique Fédérale de Lausanne (EPFL) | 2003 |
| Birtel, Frank | University of Notre Dame | 1960 |
| Birtwistle, Graham |