There are 100 mathematicians whose last name begin with IT.
| Itai, Alon | Weizmann Institute of Science | 1976 |
| Itai, Masanori | University of Illinois at Chicago | 1989 |
| Itai, Uri | Technion-Israel Institute of Technology | 2014 |
| Itakura, Fumitada | Nagoya University | 1972 |
| Itakura, Haruka | Stanford University | 2016 |
| Italiano, Giovanni | Scuola Normale Superiore di Pisa | 2024 |
| Italiano, Giuseppe | Columbia University | 1991 |
| Itani, Abdul-Hafiz | The University of Iowa | 1978 |
| Itano, Harvey | California Institute of Technology | 1950 |
| Itaru, Terada | University of Tokyo | 1991 |
| Itaya, Jun-ichi | University of Rochester | 1990 |
| Itenberg, Ilia | 1991 | |
| Itenberg, Olga | University of Pennsylvania | 2014 |
| Itikawa, Jackson | Universitat Autònoma de Barcelona | 2015 |
| Itiki, Cinthia | University of Southern California | 1996 |
| Itin, Yakov | Hebrew University of Jerusalem | 1998 |
| Itkin, Arthur | The Johns Hopkins University | 1976 |
| Itkin, David | Carnegie Mellon University | 2022 |
| Itkina, Masha | Stanford University | 2022 |
| Itkins, Jakovs | Southern Methodist University | 2004 |
| Itkis, Gene | Boston University | 1993 |
| Itle, Gregory | Carnegie Mellon University | 2003 |
| Ito, Atsushi | University of Tokyo | 2012 |
| Ito, Eri | Technische Universiteit Delft | 1996 |
| Ito, Harumi | Stanford University | 1997 |
| Ito, Henry | University of Minnesota - Twin Cities | 1974 |
| Ito, Kazufumi | Washington University in St. Louis | 1981 |
| Ito, Keiji | Tohoku University | 2020 |
| Ito, Kiyosi | University of Tokyo | 1945 |
| Ito, Ko-Ki | Kyoto University | 2006 |
| Ito, Kunihiro | Tohoku University | 2020 |
| Ito, Luke | University of Glasgow | 2019 |
| Ito, Mabo | University of British Columbia | 1971 |
| Ito, Masami | ||
| Ito, Minoru | Columbia University | 1996 |
| Ito, Naoharu | Tokyo Denki University | 1998 |
| Ito, Noboru | ||
| Ito, Paul | Saint Louis University | 1954 |
| Ito, Seiro | Brown University | 2006 |
| Ito, Shunji | University of Tokyo | 1979 |
| Ito, Takahiro | Kyushu University | 2010 |
| Ito, Takatoshi | Harvard University | 1979 |
| Ito, Tesuke | Brown University | 1972 |
| Ito, Tetsushi | University of Tokyo | 2003 |
| Ito, Tetsuya | University of Tokyo | 2012 |
| Ito, Toshio | Kyoto University | 2001 |
| Ito, Tsubasa | University of Tokyo | 2019 |
| Ito, Wallace | University of Minnesota - Twin Cities | 1951 |
| Ito, Yohei | University of Tokyo | 2020 |
| Ito, Yu | Kyoto University | 2015 |
| Ito, Yuji | Yale University | 1962 |
| Ito, Yukari | University of Tokyo | 1996 |
| Itô, Seizô | University of Tokyo | 1958 |
| Itoh, Jin-ichi | Hokkaido University | 1986 |
| Itoh, Kenji | ||
| Itoh, Makoto | ||
| Itoh, Minoru | Kyoto University | 2000 |
| Itoi, Naomaru | University of Michigan | 2001 |
| Itokawa, Yoe | State University of New York at Stony Brook | 1982 |
| Itou, Hiromichi | Keio University | 2004 |
| Itovich, Griselda | Universidad Nacional del Sur | 2006 |
| Its, Alexander | St. Petersburg State University | 1977 |
| Itsarachaiyot, Yuttana | Case Western Reserve University | 2024 |
| Itshoki, Yakov | St. Petersburg State Polytechnic University | 1938 |
| Itskhoki, Oleg | Harvard University | 2009 |
| Itskov, Vladimir | University of Minnesota - Twin Cities | 2002 |
| Itskovich, I. | St. Petersburg State University | |
| Itsweire, Eric | University of California, San Diego | 1983 |
| Itsykson, Dmitry | St. Petersburg State University | 2009 |
| Itsykson, Dmitry | Steklov Institute of Mathematics, St. Petersburg | 2009 |
| Ittekkot, Venugopalan | ||
| Itten, Klaus | Universität Zürich | 1973 |
| Ittig, Johannes | Universität Leipzig | 1631 |
| Ittig, Johannes | Universität Leipzig | 1630 |
| Ittig, Johannes | Universität Leipzig | 1637 |
| Ittig, Johannes | Universität Leipzig | 1644 |
| Ittisamai, Pawin | Michigan State University | 2014 |
| Ittner, Andreas | Technische Universität Chemnitz | 1999 |
| Ittoo, Ravi | Rijksuniversiteit Groningen | 2012 |
| Ittrich, Carina | Universität Rostock | 2000 |
| Iturbe, Mikel | Mondragon Unibertsitatea | 2017 |
| Iturrarán Viveros, Ursula | University of London | 1998 |
| Iturria, Stephen | Texas A&M University | 1998 |
| Iturriaga, Andrés | Pontificia Universidad Católica de Chile | 2016 |
| Iturriaga, J. | Carnegie Mellon University | 1967 |
| Iturriaga, Leonelo | Universidad de Chile | 2006 |
| Iturriaga, Renato | Instituto de Matemática Pura e Aplicada | 1993 |
| Iturriaga-Velazques, Claudia | University of Waterloo | 1999 |
| Iturrioz, Luisa | Universidad Nacional del Sur | 1971 |
| Ityaksov, Dmitry | Vrije Universiteit Amsterdam | 2009 |
| Itzá Balam, Reymundo | Universidad Nacional Autónoma de México (UNAM) | 2017 |
| Itza-Ortiz, Benjamin | University of Oregon | 2003 |
| Itzhak, Royi | Bar-Ilan University | 2010 |
| Itzhaki, Yael | Tel Aviv University | 2004 |
| Itzhaky, Shachar | Tel Aviv University | 2014 |
| Itzikowitz, Samuel | Rensselaer Polytechnic Institute | 1983 |
| Itzkovich, Ilan | Florida State University | 1992 |
| Itzkovitz, Ayal | Technion-Israel Institute of Technology | 1999 |
| Itzkowitz, Gerald | University of Rochester | 1965 |
| Itzykson, Claude | Université de Paris | 1967 |