There are 50 mathematicians whose last name begin with JEF.

Jeffay, Kevin University of Washington 1989
Jeffcoat, Colin The University of North Carolina at Chapel Hill 1973
Jefferies, Brian Flinders University 1982
Jefferies, Nigel University of London 1987
Jefferis, Leland University of Wisconsin-Madison 2014
Jeffers, Errol University of Waterloo 1977
Jeffers, Heather Ball State University 2020
Jeffers, James Tulane University 1966
Jeffers, Jason University of Cambridge 2002
Jeffers, John University of Essex 1992
Jeffers, Robert California Institute of Technology 1971
Jefferson, Aziza University of Florida 2015
Jefferson, Christopher University of York 2008
Jefferson, Curtis Case Western Reserve University 1978
Jefferson, Daniel Heriot-Watt University 2002
Jefferson, David University of Michigan 1969
Jefferson, David Carnegie Mellon University 1980
Jefferson, Stanley University of Illinois at Urbana-Champaign 1988
Jefferson, Jr., Thomas University of Colorado at Boulder 1969
Jeffery, Alan University of London 1963
Jeffery, Alexander University of Sussex 2020
Jeffery, Clinton University of Arizona 1993
Jeffery, Ralph Cornell University 1928
Jeffery, Shawn University of California, Berkeley 2008
Jeffres, Thalia State University of New York at Stony Brook 1996
Jeffrey, Alan University of London 1963
Jeffrey, Alan University of Oxford 1991
Jeffrey, David University of Cambridge 1974
Jeffrey, Dennis University of California, Riverside 2009
Jeffrey, Lisa University of Oxford 1991
Jeffrey, Michael University of Bristol 2007
Jeffrey, Mike 2007
Jeffrey, Richard Princeton University 1957
Jeffreys, Harold University of Cambridge 1917
Jeffreys, Luke University of Glasgow 2020
Jeffries, Carson Stanford University 1950
Jeffries, Clark University of Toronto 1971
Jeffries, Jack University of Utah 2015
Jeffries, John University of California, San Diego 1987
Jeffries, Neal University of Maryland College Park 1998
Jeffries, Robin University of California, Los Angeles 2013
Jeffris, Michael North Carolina State University 1998
Jeffryes, B. University of Oxford 1984
Jeffs, Janice Carleton University 1987
Jeffs, Maxim Harvard University 2023
Jeffs, R. University of Washington 2021
Jeffs, Rebecca University of South Wales 2015
Jeflea, Antoneta University of Craiova 2009
Jefté Rodrigues de Sousa, Vilmar École Polytechnique de Montréal 2018
Jeftha, Lindsey Universiteit Stellenbosch 2010