There are 22 mathematicians whose last name begin with HJ.
| Hjalmarson, Harold | University of Illinois at Urbana-Champaign | 1979 |
| Hjalmarson, Margret | Purdue University | 2004 |
| Hjalmarsson, Erik | Yale University | 2005 |
| Hjalmarsson, Håkan | Linköpings Universitet | 1993 |
| Hjalmarsson, Lennart | Göteborgs universitet | 1976 |
| Hjaltason, Gisli | University of Maryland College Park | 2000 |
| Hjelle, Geir Arne | Norges Teknisk-Naturvitenskapelige Universitet | 2006 |
| Hjelmborg, Jacob | Odense University | 2000 |
| Hjelmslev, Johannes | Københavns Universitet | 1897 |
| Hjelmslev, Louis | Københavns Universitet | 1923 |
| Hjelmstad, Keith | University of California, Berkeley | 1983 |
| Hjörleifsson, Kristján | California Institute of Technology | 2022 |
| Hjorring, Curt | University of Auckland | 1995 |
| Hjort, Jonas | University of California, Berkeley | 2012 |
| Hjort, Nils | ||
| Hjortdahl, Per | ||
| Hjorter, Olof | Universiteit Utrecht | |
| Hjorter, Olof | Uppsala Universitet | |
| Hjorth, Gregory | University of California, Berkeley | 1993 |
| Hjorth, Poul | University of California, San Diego | 1988 |
| Hjorth, Urban | ||
| Hjouj, Fawaz | Southern Illinois University at Carbondale | 2003 |