There are 25 mathematicians whose last name begin with IRW.
| Irwansyah, | Institut Teknologi Bandung | 2016 |
| Irwig, Leslie | University of the Witwatersrand | 1985 |
| Irwin, Andrew | Queen's University at Kingston | 2000 |
| Irwin, Andrew | University of British Columbia | 1993 |
| Irwin, Angela | University of South Australia | 2013 |
| Irwin, Benjamin | Drexel University | 2021 |
| Irwin, Caulton | Emory University | 1969 |
| Irwin, Charles | Stanford University | 1998 |
| Irwin, David | Duke University | 2007 |
| Irwin, Frank | Harvard University | 1908 |
| Irwin, George | Queen's University of Belfast | 1976 |
| Irwin, J. | University of Cambridge | 1937 |
| Irwin, James | Washington State University | 1975 |
| Irwin, John | University of Kansas | 1960 |
| Irwin, Kathryn | University of Auckland | 1997 |
| Irwin, M. | University of Cambridge | 1963 |
| Irwin, Mark | The University of Chicago | 1995 |
| Irwin, Patrick | University of Cambridge | 1998 |
| Irwin, Paul | University of Maryland College Park | 1974 |
| Irwin, Robert | 2011 | |
| Irwin, Robert | University of Arizona | 1963 |
| Irwin, Ronald | University of Utah | 1965 |
| Irwin, Timothy | Victoria University of Wellington | 2023 |
| Irwin, Trevor | Indiana University | 2007 |
| Irwin Stout, Amy | University of California, San Diego | 2012 |