There are 70 mathematicians whose last name begin with MCI.
| McIlhagger, David | Queen's University of Belfast | 2007 |
| McIlhenny, Robert | University of California, Los Angeles | 2002 |
| McIlraith, Sheila | University of Toronto | 1997 |
| McIlroy, Malcolm | Massachusetts Institute of Technology | 1947 |
| McIlroy, M. Douglas | Massachusetts Institute of Technology | 1959 |
| McIlveen, William | Queen's University of Belfast | 1972 |
| McIlwain, Knox | ||
| McIlwain, Mary | Rice University | 1998 |
| McIlwain, Sean | University of Wisconsin-Madison | 2008 |
| Mcinerney, Andrew | The Pennsylvania State University | 1994 |
| McInerney, Daragh | University of Oxford | 2001 |
| McInerney, J. | ||
| McInerney, John | University of California, San Diego | 1992 |
| McInerney, Melissa | University of Maryland College Park | 2008 |
| McInerney, Michael | Victoria University of Wellington | 2016 |
| McInerney, Peter | University of Warwick | 1973 |
| McInerney, Timothy | University of Toronto | 1997 |
| McInnes, Allan | University of Illinois at Urbana-Champaign | 1973 |
| McInnes, Brett | University of Sydney | 1982 |
| McInnes, Bridget | University of Minnesota - Twin Cities | 2009 |
| McInnes, Kathleen | Monash University | 1991 |
| McInroy, Adam | Columbia University | 2004 |
| McInroy, Justin | University of Birmingham | 2011 |
| McIntee, Tomas | University of California, Irvine | 2015 |
| McIntire, Donald | Southern Methodist University | 1977 |
| McIntire, Roland | Brown University | 1985 |
| Mcintosh, Richard | University of California, Los Angeles | 1989 |
| Mcintosh, Robert | Australian National University | 1988 |
| McIntosh, Alan | University of California, Berkeley | 1966 |
| McIntosh, Allen | University of Toronto | 1981 |
| McIntosh, Andrew | Cranfield University | 1981 |
| McIntosh, Colin | ||
| McIntosh, Craig | University of California, Berkeley | 2003 |
| McIntosh, Daniel | University of Michigan | 1992 |
| McIntosh, David | University of Toronto | 1993 |
| McIntosh, Harold | ||
| McIntosh, Ian | University of London | 1988 |
| McIntosh, Jerry | Indiana University | 1964 |
| McIntosh, John | University of Strathclyde | 1997 |
| McIntosh, Martin | Harvard University | 1996 |
| McIntosh, Nathaniel | Rice University | 1997 |
| McIntosh, Peter | Monash University | 1984 |
| McIntosh, Shane | Queen's University at Kingston | 2015 |
| McIntosh, Steven | London School of Economics and Political Science | 1997 |
| McIntosh, William | University of Kansas | 1966 |
| McIntosh, Jr., Robert | The University of Iowa | 1967 |
| McInturff, Patrick | University of California, Davis | 2002 |
| McIntyre, Andrew | State University of New York at Stony Brook | 2002 |
| McIntyre, Dale | Clemson University | 1991 |
| McIntyre, David | University of Oxford | 1990 |
| McIntyre, David | Rensselaer Polytechnic Institute | 1992 |
| McIntyre, David | University of Waterloo | 1978 |
| McIntyre, Eldon | New York University | 1976 |
| McIntyre, Hugh | Queen's University of Belfast | 1964 |
| McIntyre, Julie | North Carolina State University | 2003 |
| McIntyre, Lauren | North Carolina State University | 1996 |
| McIntyre, Lee | University of Michigan | 1991 |
| McIntyre, Margaret | La Trobe University | 1995 |
| McIntyre, Michael | University of Cambridge | 1967 |
| McIntyre, Nicholas | University of Keele | 1999 |
| McIrvine, Edward Charles | Cornell University | 1959 |
| McIsaac, Anthony | University of Oxford | 1976 |
| McIsaac, Michael | University of Waterloo | 2013 |
| McIver, Annabelle | University of Oxford | 1988 |
| McIver, Jeffrey | University of California, Berkeley | 1986 |
| McIver, John | Indiana University | 1986 |
| McIver, Philip | University of Liverpool | 1978 |
| McIver, Jr., James | University of Pennsylvania | 1966 |
| McIvor, Alan | Harvard University | 1985 |
| McIvor, Ivor | Stanford University | 1962 |