There are 34 mathematicians whose last name begin with HAGEN.
| Hagen, Aaron | University of Minnesota - Twin Cities | 1996 |
| Hagen, Alex | The Pennsylvania State University | 2017 |
| Hagen, Beatrice | The University of Chicago | 1930 |
| Hagen, Carl Richard | Massachusetts Institute of Technology | 1963 |
| Hagen, Claudia | Technische Universität Darmstadt | 1997 |
| Hagen, Cornelis | Universiteit van Amsterdam | 1969 |
| Hagen, Everett | University of Wisconsin-Madison | 1941 |
| Hagen, Friedrich | Martin-Luther-Universität Halle-Wittenberg | 1700 |
| Hagen, Friedrich | Martin-Luther-Universität Halle-Wittenberg | 1700 |
| Hagen, Gottlieb | Justus-Liebig-Universität Gießen | 1733 |
| Hagen, Gregory | University of Western Ontario | 1996 |
| Hagen, Hans-Jürgen | Universität Dortmund | 1982 |
| Hagen, Joachim | ||
| Hagen, Johannes | Uppsala universitet | 2016 |
| Hagen, Jon | Cornell University | 1972 |
| Hagen, Jorrit | Rijksuniversiteit Groningen | 2020 |
| Hagen, Lars | University of California, Los Angeles | 1994 |
| Hagen, Mariele | Universität Leipzig | 2005 |
| Hagen, Mark | McGill University | 2012 |
| Hagen, Matthias | Friedrich-Schiller-Universität Jena | 2008 |
| Hagen, Roland | Technische Universität Chemnitz | 1981 |
| Hagen, Siegfried | Universiteit van Amsterdam | 1966 |
| Hagen, Thomas | Virginia Polytechnic Institute and State University | 1998 |
| Hagen, Wim | Universiteit Leiden | 1982 |
| Hagena, Maike | Universität Kassel | 2017 |
| Hagenaar, Mandy | Universiteit Utrecht | 1999 |
| Hagenaars, Jacques | Tilburg University | 1985 |
| Hagenah, Christian | Universität Stuttgart | 2000 |
| Hagenbach, August | Universität Leipzig | 1894 |
| Hagenbach, Udo | Philipps-Universität Marburg | 1999 |
| Hagenbrock, Vanessa | Universität der Bundeswehr München | 2016 |
| Hagendoorn, Louk | Katholieke Universiteit Nijmegen | 1976 |
| Hagengruber, Roger | University of Wisconsin-Madison | 1971 |
| Hagens, Arthur | Universiteit van Amsterdam | 1954 |