There are 5 mathematicians whose last name begin with IRL.
| Irlacher, Michael | Ludwig-Maximilians-Universität München | 2014 |
| Irland, Marek | University of Waterloo | 1977 |
| Irlbeck, William | University of Montana | 1972 |
| Irle, Albrecht | Westfälische Wilhelms-Universität Münster | 1973 |
| Irle, Sebastian | Philipps-Universität Marburg | 2012 |