| Dibyendu Sekhar | Bag | Defence Materials and Stores Research and Development Establishment (DMSRDE), DRDO | India | Materials Science | Polymer Materials | worldtopscientists.com |
| Diego | Caratelli | Eindhoven University of Technology | Netherlands | Engineering | Applied Mathematics | worldtopscientists.com |
| Diego | Borges Cordeiro | Pontifícia Universidade Católica de São Paulo (PUC-SP) | Brazil | Social Sciences | Sociologia | worldtopscientists.com |
| Dillip | Mishra | Clemson University | United States | Engineering | Electrical Engineering | worldtopscientists.com |
| Dimitrios-Aristotelis | Koumpakis | Aristotle University of Thessaloniki | Greece | Energy | Waste to Energy | worldtopscientists.com |
| Dimuthu Punsara | Colambage | University of Moratuwa | Sri Lanka | Energy | Energy Economics | worldtopscientists.com |
| Dinithi | Peiriis | University of Sri Jayewardenepura | Sri Lanka | Agricultural and Biological Sciences | Physiology, diseases, infertility | worldtopscientists.com |
| Djamila | Rekioua | University of Bejaia | Algeria | Engineering | Energies renouvelables | worldtopscientists.com |
| Djanna | Koubodana Houteta | Climate System Analysis Group, University of Cape Town | South Africa | Environmental Science | Climate science | worldtopscientists.com |
| Dmitry | Efanov | Peter the Great St. Petersburg Polytechnic University | Russia | Computer Science | Built-In Self Test | worldtopscientists.com |
| Dnyaneshwar | Gholap | Smt. C. H. M. College, Ulhasnagar Mumbai | India | Chemistry | Chemistry | worldtopscientists.com |
| DONGFENG | QI | SHANDONG UNIVERSITY OF TECHNOLOGY | China | Engineering | laser processing | worldtopscientists.com |
| Adamu | Rasheed | Bayero University Kano | Nigeria | Chemical Engineering | Waste Valorization | worldtopscientists.com |
| Ahmed | Abdelaal | Environmental Sciences Department, Port Said University | Egypt | Environmental Science | Environmental geology and contamination risk assessment | worldtopscientists.com |
| Ahmed | Meshaal | Faculty of science Al Azhar university | Egypt | Immunology and Microbiology | Assiut governorate | worldtopscientists.com |
| Aida | Meto | University of Aldent | Albania | Dentistry | Oral Science | worldtopscientists.com |
| Alexandrina | Nan | National Institute for R&D of Isotopic and Molecular Technologies, Cluj-Napoca | Romania | Materials Science | Polymer Science | worldtopscientists.com |
| Amel | Hamdi | Instituto de la grasa | Spain | Agricultural and Biological Sciences | Nutraceuticals, Functional Foods, and Novel Foods | worldtopscientists.com |
| Amir Hossein | Poursaeed | University of Exeter | United Kingdom | Engineering | Electrical Engineering | worldtopscientists.com |
| Anali | Azabdaftari | Western Sydney University | Australia | Other | Remote Sensing | worldtopscientists.com |