There are 6 mathematicians whose last name begin with IBI.
| Ibiejugba, Matthew | University of Leeds | 1980 |
| Ibieta-Jimenez, Juan Pablo | Universidade de São Paulo | 2019 |
| Ibikli, Ertan | ||
| Ibinson, Ben | University of Bristol | 2007 |
| Ibisch, Horst | Eberhard-Karls-Universität Tübingen | 1961 |
| Ibisch, Horst | Université de Paris | 1967 |