There are 44 mathematicians whose last name begin with OPP.
| Opp, Eric | University of Maryland College Park | 1992 |
| Oppacher, Franz | Universität Wien | 1965 |
| Oppe, Thomas | University of Texas at Austin | 1990 |
| Oppegaard, Dean | North Carolina State University | 1993 |
| Oppel, Ulrich | Ludwig-Maximilians-Universität München | 1969 |
| Oppelmayer, Hanna | Chalmers Tekniska Högskola | 2020 |
| Oppelstrup, Jesper | Kungliga Tekniska Högskolan (KTH) | 1976 |
| Oppelt, John | University of Notre Dame | 1965 |
| Oppelt, Winfried | Technische Universität Darmstadt | 1943 |
| Oppen, Derek | University of Toronto | 1975 |
| Oppeneer, Martien | Technische Universiteit Eindhoven | 2014 |
| Oppenheim, Alan | Massachusetts Institute of Technology | 1964 |
| Oppenheim, Alan | New York University | 1964 |
| Oppenheim, Alexander | The University of Chicago | 1930 |
| Oppenheim, Georges | Université Paris V | 1983 |
| Oppenheim, Irving | University of Cambridge | 1972 |
| Oppenheim, Irwin | Yale University | 1957 |
| Oppenheim, Izhar | Technion-Israel Institute of Technology | 2012 |
| Oppenheim, Jacques | ||
| Oppenheim, Jonathan | University of British Columbia | 2000 |
| Oppenheim, Joseph | University of Illinois at Urbana-Champaign | 1962 |
| Oppenheim, Meers | Cornell University | 1995 |
| Oppenheim, Samuel | Universität Wien | 1884 |
| Oppenheimer, Bonnie | University of Texas at Austin | 1992 |
| Oppenheimer, David | University of California, Berkeley | 2005 |
| Oppenheimer, Edward | Iowa State University | 1974 |
| Oppenheimer, Franz | Christian-Albrechts-Universität zu Kiel | 1908 |
| Oppenheimer, Friedrich | Philipps-Universität Marburg | 1929 |
| Oppenheimer, Hermann | Friedrich-Schiller-Universität Jena | 1892 |
| Oppenheimer, Julius Robert | Georg-August-Universität Göttingen | 1927 |
| Oppenheimer, Michael | The University of Chicago | 1970 |
| Oppenheimer, Naomi | Tel Aviv University | 2012 |
| Oppenheimer, Peter | ||
| Oppenheimer, Seth | University of Texas at Austin | 1987 |
| Opper, Eliezer | University of Texas at Austin | 1984 |
| Opper, Sebastian | Universität zu Köln | 2019 |
| Opperman, Logan | Bowling Green State University | 2019 |
| Oppermann, Michael | University of British Columbia | 2021 |
| Oppermann, Steffen | Universität zu Köln | 2007 |
| Oppezzi, Pirro | ||
| Oppio, Marco | Università degli Studi di Trento | 2018 |
| Oppitz, Kurt | Technische Universität Dresden | 1988 |
| Oppizi, Olivier | Université d'Avignon | 1996 |
| Oppong, Nicholas | University of Georgia | 1992 |