There are 50 mathematicians whose last name begin with SIK.
| Šik, František | Masaryk University | 1955 |
| Sikali, Emmanuel | George Mason University | 2004 |
| Sikander, Shehryar | Aarhus University | 2014 |
| Sikaria, Shubhangi | Indian Institute of Technology, Madras | 2023 |
| Sikdar, Dhirendra | University of Wisconsin-Madison | 1969 |
| Sikdar, Somnath | The Institute of Mathematical Sciences, Chennai | 2010 |
| Sikdar, Soumyendranath | University of Minnesota - Twin Cities | 1984 |
| Sikdar, Sujit | ||
| Sikdar, Sujoy Kumar | Rensselaer Polytechnic Institute | 2018 |
| Sikeler, Andrea | Technische Universität Kaiserslautern | 1989 |
| Sikharulidze, Irakli | Technische Universiteit Eindhoven | 2005 |
| Sikhova, Aiday | University of Wisconsin-Madison | 2019 |
| Sikic, Hrvoje | University of Florida | 1993 |
| Sikic, Mario | ETH Zürich | 2015 |
| Šikić, Zvonimir | University of Zagreb | 1987 |
| Sikk, Jaak | Ural State University | 1980 |
| Sikka, Pavan | University of Alberta | 1994 |
| Sikka, Vishal | Stanford University | 1996 |
| Sikkel, Dirk | Universiteit van Amsterdam | 1988 |
| Sikkel, Klaas | Universiteit Twente | 1993 |
| Sikkema, Carl | University of Michigan | 1965 |
| Sikkema, Cornelis | Rijksuniversiteit Groningen | 1958 |
| Sikkema, Doetze | Universiteit Leiden | 1969 |
| Sikkema, Geert | Rijksuniversiteit Groningen | 2009 |
| Sikkema, Herman | Universiteit van Amsterdam | 1912 |
| Sikkema, Pieter | Rijksuniversiteit Groningen | 1953 |
| Sikkenk, Johannes | Universiteit Leiden | 1987 |
| Sikkens, Herman | Rijksuniversiteit Groningen | 1983 |
| Sikkens, Marten | Rijksuniversiteit Groningen | 1981 |
| Sikko, Svein | Norges Teknisk-Naturvitenskapelige Universitet | 1993 |
| Siklos, Stephen | University of Cambridge | 1976 |
| Sikolya, Eszter | Eberhard-Karls-Universität Tübingen | 2004 |
| Sikonia, William | University of Colorado at Boulder | 1970 |
| Sikora, Adam | University of Maryland College Park | 2000 |
| Sikora, Adam | Polska Akademia Nauk | 1994 |
| Sikora, Grzegorz | Politechnika Wrocławska | 2014 |
| Sikora, Jamie | University of Waterloo | 2012 |
| Sikora, Lukasz | Tulane University | 2019 |
| Sikora, Marcin | University of Notre Dame | 2008 |
| Sikora, Martin | The Ohio State University | 1997 |
| Sikora, Martin | Charles University | 2010 |
| Sikorav, Jean-Claude | Université Paris-Sud XI - Orsay | 1982 |
| Sikorra, Rita | Universität Greifswald | 1976 |
| Sikorska, Justyna | Uniwersytet Śląski w Katowicach | 1998 |
| Sikorski, Krzysztof | University of Utah | 1982 |
| Sikorski, Roman | Uniwersytet Warszawski | 1949 |
| Sikorskii, Alla | Michigan State University | 2000 |
| Sikos, Jennifer | Universität Stuttgart | 2022 |
| Siksek, Samir | University of Exeter | 1995 |
| Sikstel, Aleksey | Rheinisch-Westfälische Technische Hochschule Aachen | 2020 |