There are 26 mathematicians whose last name begin with GIG.
| Giga, Yoshikazu | University of Tokyo | 1985 |
| Gigan, Sylvain | Université Pierre-et-Marie-Curie - Paris VI | 2004 |
| Gigante, Angelina | Université de Genève | 2020 |
| Gigante, Giacomo | Washington University in St. Louis | 1999 |
| Gigante, Nicola | Università degli Studi di Udine | 2019 |
| Gigault de Crisenoy, Marc | Université de Caen Normandie | 2003 |
| Gigena, Salvador | University of Pennsylvania | 1973 |
| Giger, Adolf | Universität Zürich | 1914 |
| Giger, Hans | Universität Bern | 1954 |
| Gigerenzer, Gerd | Ludwig-Maximilians-Universität München | 1977 |
| Giger-Hofmann, Christine | Technische Universität Darmstadt | 1992 |
| Giggins, Helen | University of Newcastle | 2009 |
| Gigley, Helen | University of Massachusetts Amherst | 1982 |
| Gigli, Anna | University of London | 1994 |
| Gigli, Nicola | Scuola Normale Superiore di Pisa | 2008 |
| Gigli, Pietro | Universität Duisburg-Essen | 2025 |
| Gigliarano, Chiara | Università Commerciale Luigi Bocconi | 2006 |
| Gigliotti, Gary | Columbia University | 1978 |
| Gignac, William | University of Michigan | 2013 |
| Gigola, Silvia | Universitat Politècnica de València | 2018 |
| Gigoń, Roman | Politechnika Wrocławska | 2013 |
| Gigot de La Peyronie, François | Hôpital de la Charité de Paris | |
| Giguere, Philippe | McGill University | 2010 |
| Giguere, Pierre | University of Michigan | 1998 |
| Giguere, Stephen | University of Massachusetts Amherst | 2021 |
| Gigus, Ziv | University of California, Berkeley | 1991 |