There are 53 mathematicians whose last name begin with HADD.
| Hadd, Said | Université Cadi Ayyad, Marrakech | 2005 |
| Haddad, Abraham | Princeton University | 1966 |
| Haddad, Axel | Université Paris Diderot - Paris 7 | 2013 |
| Haddad, Caroline | Rensselaer Polytechnic Institute | 1993 |
| Haddad, Claudio | The University of Chicago | 1974 |
| Haddad, David | Purdue University | 1970 |
| Haddad, Georges | Université Paris IX - Dauphine | 1982 |
| Haddad, Ghaith | University of Central Florida | 2012 |
| Haddad, Ghassen | Sorbonne Université | 2019 |
| Haddad, Hadi | University of Texas at Austin | 1962 |
| Haddad, Kamel | University of Maryland College Park | 1992 |
| Haddad, Labib | ||
| Haddad, Lucien | Université de Montréal | 1987 |
| Haddad, Matthew | University of Miami | 2019 |
| Haddad, Michel | Lomonosov Moscow State University | 1995 |
| Haddad, Mohammad Ali | Vrije Universiteit Amsterdam | 2014 |
| Haddad, Ramsey | Stanford University | 1990 |
| Haddad, Richard | Polytechnic University | 1962 |
| Haddad, Serge | Université Pierre-et-Marie-Curie - Paris VI | 1987 |
| Haddad, Shatha | University of Durham | 2014 |
| Haddad, Wassim | Florida Institute of Technology | 1987 |
| Haddad, Yoram | Université Paris-Sud XI - Orsay | 1988 |
| Haddad, Ziad | Massachusetts Institute of Technology | 1984 |
| Haddadi, Hamed | University College London | 2008 |
| Haddadi, Mahdieh | Shahid Beheshti University | 2011 |
| Haddadi, Navid | University of Southern California | 1995 |
| Haddadian, Rojiar | University of Manitoba | 2016 |
| Haddaji, Wady | Duke University | 2009 |
| Haddaoui, Khalil | Université Pierre-et-Marie-Curie - Paris VI | 2016 |
| Haddar, Houssem | ||
| Haddawy, Peter | University of Illinois at Urbana-Champaign | 1991 |
| Hadded, Fatma | Université Tunis-El Manar | 2003 |
| Hadden, George | University of Illinois at Urbana-Champaign | 1980 |
| Hadden, Rory | The University of Edinburgh | 2011 |
| Hadder, Youness | Université Moulay Ismail, Meknès | 2010 |
| Hadders, Hendrik | Rijksuniversiteit Groningen | 1948 |
| Haddi, Aziz | Université Claude Bernard Lyon 1 | 1986 |
| Haddix, George | Iowa State University | 1969 |
| Haddix. III, Frank | University of Texas at Austin | 1999 |
| Haddleton, David | University of York | 1986 |
| Haddleton, Russell | University of Virginia | 1998 |
| Haddock, A. Glen | Oklahoma State University | 1961 |
| Haddock, Guillermo | Rheinische Friedrich-Wilhelms-Universität Bonn | 1973 |
| Haddock, Jamie | University of California, Davis | 2018 |
| Haddock, Joanna | Yale University | 2006 |
| Haddock, John | Southern Illinois University at Carbondale | 1970 |
| Haddock-Acevedo, Jorge | Purdue University | 1981 |
| Haddon, Antoine | Université de Montpellier | 2019 |
| Haddon, Antoine | Universidad de Chile | 2019 |
| Haddon, John | University of California, Berkeley | 2000 |
| Haddou, Mounir | Université Blaise Pascal | 1995 |
| Haddouche, Anis | Université de Rouen | 2019 |
| Haddow, Barry | University of Aberdeen | 1993 |