| Mr | Dessie Ezez | Asfaw | Arba Minch University | Ethiopia | Chemistry | Analytical Chemistry | Impactful Researcher Award | worldtopscientists.com |
| Dr | Deyin | Zhang | Lanzhou University | China | Agricultural and Biological Sciences | Animal genetics, breeding and reproduction | Best Researcher Award | worldtopscientists.com |
| Mr | Dhananjay | Janorkar | Shantaram Janorkar Foundation of Mathematics, MAHAN - 444 405, Tq. Barshitakli, Dist. Akola, Maharashtra State, India | India | Mathematics | Mathematics, Astrophysics and Science | Emerging Scientist Excellence Award | worldtopscientists.com |
| Dr | Dhananjay | Janorkar | Shantaram Janorkar Foundation of Mathematics | India | Mathematics | Mathematics, Astrophysics and Science | Scientific Excellence Achievement Award | worldtopscientists.com |
| Assoc. Prof. Dr | Diamanto | Aretha | University of Patras | Greece | Health Professions | Anesthesiology and Intensive Care | Research Excellence Award | worldtopscientists.com |
| Dr | Diana | Layne | Medical University of South Carolina | United States | Nursing and Health Professions | Nursing Workforce | Best Researcher Award | worldtopscientists.com |
| Dr | Dibyendu Sekhar | Bag | Defence Materials and Stores Research and Development Establishment (DMSRDE), DRDO | India | Materials Science | Polymer Materials | Outstanding Scientist Award | worldtopscientists.com |
| Dr | Diego | Caratelli | Eindhoven University of Technology | Netherlands | Engineering | Applied Mathematics | Best Researcher Award | worldtopscientists.com |
| Dr | Diego | Borges Cordeiro | Pontifícia Universidade Católica de São Paulo (PUC-SP) | Brazil | Social Sciences | Sociologia | Best Researcher Award | worldtopscientists.com |
| Dr | Dillip | Mishra | Clemson University | United States | Engineering | Electrical Engineering | Best Researcher Award | worldtopscientists.com |
| Mr | Dimitrios-Aristotelis | Koumpakis | Aristotle University of Thessaloniki | Greece | Energy | Waste to Energy | Young Scientist Award | worldtopscientists.com |
| Mr | Dimuthu Punsara | Colambage | University of Moratuwa | Sri Lanka | Energy | Energy Economics | Young Scientist Award | worldtopscientists.com |
| Prof Dr | Dinithi | Peiriis | University of Sri Jayewardenepura | Sri Lanka | Agricultural and Biological Sciences | Physiology, diseases, infertility | Women Researcher Award | worldtopscientists.com |
| Prof | Djamila | Rekioua | University of Bejaia | Algeria | Engineering | Energies renouvelables | Best Researcher Award | worldtopscientists.com |
| Dr | Djanna | Koubodana Houteta | Climate System Analysis Group, University of Cape Town | South Africa | Environmental Science | Climate science | Research Excellence Award | worldtopscientists.com |
| Prof. Dr | Dmitry | Efanov | Peter the Great St. Petersburg Polytechnic University | Russia | Computer Science | Built-In Self Test | Best Researcher Award | worldtopscientists.com |
| Mr | Dnyaneshwar | Gholap | Smt. C. H. M. College, Ulhasnagar Mumbai | India | Chemistry | Chemistry | Best Researcher Award | worldtopscientists.com |
| Prof | DONGFENG | QI | SHANDONG UNIVERSITY OF TECHNOLOGY | China | Engineering | laser processing | Best Researcher Award | worldtopscientists.com |
| Dr | Adamu | Rasheed | Bayero University Kano | Nigeria | Chemical Engineering | Waste Valorization | Research Excellence Award | worldtopscientists.com |
| Dr | Ahmed | Abdelaal | Environmental Sciences Department, Port Said University | Egypt | Environmental Science | Environmental geology and contamination risk assessment | Best Researcher Award | worldtopscientists.com |