There are 34 mathematicians whose last name begin with WELC.
| Welc, Adam | Purdue University | 2006 |
| Welch, Alan | ||
| Welch, Amy | University of Mississippi | |
| Welch, Barry | University of Southampton | 2005 |
| Welch, Bernard | ||
| Welch, Charles | University of Michigan | 2021 |
| Welch, Darrel | Cardiff University | 2006 |
| Welch, David | University of Auckland | 2006 |
| Welch, Dean | University of California, Santa Barbara | 1995 |
| Welch, Felix | University of Illinois at Urbana-Champaign | 1937 |
| Welch, Finis | The University of Chicago | 1966 |
| Welch, Frank | University of Wisconsin-Madison | 1943 |
| Welch, George | Dartmouth College | 1992 |
| Welch, James | University of Waterloo | 1974 |
| Welch, Jennifer | Massachusetts Institute of Technology | 1988 |
| Welch, John | Georgetown University | 1968 |
| Welch, John | North Carolina State University | 1964 |
| Welch, John | University of Illinois at Urbana-Champaign | 1988 |
| Welch, Joshua | The University of North Carolina at Chapel Hill | 2017 |
| Welch, Lawrence | University of Illinois at Urbana-Champaign | 1981 |
| Welch, Lloyd | California Institute of Technology | 1958 |
| Welch, Lyle | Michigan State University | 1971 |
| Welch, Michael | University of California, Los Angeles | 1987 |
| Welch, Peter | University of Warwick | 1974 |
| Welch, Philip | University of Oxford | 1979 |
| Welch, Philip | University of London | 2003 |
| Welch, Richard | University of South Florida | 1976 |
| Welch, Stephen | The University of Iowa | 2012 |
| Welch, Will | Carnegie Mellon University | 1995 |
| Welch, William | University of California, Berkeley | 1960 |
| Welch, William | Imperial College London | 1981 |
| Welcher, Peter | Massachusetts Institute of Technology | 1978 |
| Welchlin, Lutz | Technische Universität Berlin | 1992 |
| Welchman, Gordon |