There are 32 mathematicians whose last name begin with OBR.
| Obraczka, Katia | University of Southern California | 1994 |
| Obradors i Berenguer, Xavier | ||
| Obradovic, Davor | University of Pennsylvania | 2001 |
| Obradovic, Dragan | Massachusetts Institute of Technology | 1990 |
| Obradovic, Marko | University of Belgrade | 2015 |
| Obradovic, Mirjana | The Pennsylvania State University | 1991 |
| Obradovic, Zoran | The Pennsylvania State University | 1991 |
| Obradović, Aleksandar | University of Belgrade | 1995 |
| Obradović, Gabrijela | Chalmers Tekniska Högskola | 2023 |
| Obradović, Ilija | Technische Universität Darmstadt | 1942 |
| Obradović, Ivan | University of Belgrade | 1991 |
| Obradović, Jovana | Université Paris Cité | 2017 |
| Obradović, Milutin | University of Belgrade | 1984 |
| Obradović, Oleg | University of Belgrade | 1993 |
| Obradović, Ratko | University of Novi Sad | 2000 |
| Obraztsov, V. | ||
| Obraztsova, Svetlana | Steklov Institute of Mathematics | 2011 |
| Obraztsova, Svetlana | Nanyang Technological University | 2012 |
| Obrębska, Joanna | Uniwersytet Warszawski | 2009 |
| Obrechkoff, Nikola | Università di Palermo | 1932 |
| Obrechkoff, Nikola | Université de Paris | 1933 |
| Obrecht, Caroline | Université Paris-Sud XI - Orsay | 2015 |
| Obrecht, Hans | Harvard University | 1976 |
| Obreque Níñez, Carlos | Pontificia Universidad Católica de Chile | 2007 |
| Obretenov, Apostol | Institute of Mathematics and Informatics, Bulgarian Academy of Sciences | 1962 |
| Obrist, Dominik | University of Washington | 2000 |
| Obrist, Jeannette | The Catholic University of America | 1941 |
| Obrizan, Maksym | The University of Iowa | 2010 |
| Obrizan, Vladimir | Kharkiv National University of Radioelectronics | 2017 |
| Obrock, Arthur | Washington University in St. Louis | 1964 |
| Obrović, Branko | University of Belgrade | 1977 |
| Obrzud, Ewelina | Université de Genève | 2019 |