| Assoc Prof Dr | Diwakar | Agarwal | GLA University | India | Engineering | Biometrics and Image Analysis | Best Researcher Award | |
| Ms | DMR Thusitha | Divisekara | Michigan Technological University | United States | Chemistry | Analytical/Enviromental/Atmospheric | Best Researcher Award | |
| Prof. Dr | Dohee | Kim | Hallym University | South Korea | Business, Management and Accounting | Hospitality Marketing | Best Researcher Award | |
| Mr | Dominic Tasila | Konja | kiel University | Germany | Agricultural and Biological Sciences | Agricultural Economics | Women Researcher Award | youngscientistawards.com |
| Dr | Donald | Atsa'am | University of the Free State | South Africa | Computer Science | Machine Learning | Best Researcher Award | |
| Dr | Donatella | Delle Cave | CNR | Italy | Biochemistry, Genetics and Molecular Biology | oncologia | Women Researcher Award | youngscientistawards.com |
| Mr | Donatien Serge | Mbaga | The University of Yaoundé I | Cameroon | Immunology and Microbiology | Virology | Young Scientist Award | |
| Dr | Donatos | Tsamoulis | National and Kapodistrian University of Athens | Greece | Medicine and Dentistry | Cardiology | Best Researcher Award | youngscientistawards.com |
| Mr | Dongdong | Zhou | Southeast University | China | Engineering | Friction and superlubricity | Best Researcher Award | |
| Dr | Donghoon | Song | Cornell University | United States | Energy | Perovskite solar cells | Best Researcher Award | |
| Prof. Dr | Dongli | Hu | School of Materials Science and Engineering, NingboTech University | China | Materials Science | Photovoltaics, Silicon Materials | Best Researcher Award | |
| Prof | Dongqiang | Zhu | Peking University | China | Environmental Science | Environmental geochemistry and biogeochemistry | Best Researcher Award | |
| Mr | Dongsheng | Tang | Shenzhen University | China | Neuroscience | neuromodulation | Best Researcher Award | youngscientistawards.com |
| Prof | Dongyang | Zhu | Tianjin University | China | Chemical Engineering | Engineering materials for sustainability at the water-energy-health nexus | Young Scientist Award | youngscientistawards.com |
| Dr | Doongar | CHaudhary | CSIR-CSMCRI | India | Agricultural and Biological Sciences | soil microbiology | Excellence in Research | |
| Ms | Dora Domnica | Baciu | INCDMM Cantacuzino | Romania | Biochemistry, Genetics and Molecular Biology | molecular biology | Best Researcher Award | |
| Mrs | Doris | Aduba | Federal College of Dental Technology and Therapy, Enugu | Nigeria | Social Sciences | Library and Information Science | Best Researcher Award | |
| Mr | Doron | Ashkenazi | Tel Aviv University | Israel | Agricultural and Biological Sciences | Marine biotechnology/ Aquaculture/ Phycology | Best Researcher Award | |
| Prof. Dr | Dorra | GHORBEL | INSAT, Université de Carthage | Tunisia | Engineering | Food Science | Best Researcher Award | |
| Dr | Dr Gulzar Ahmad | Nayik | Govt. Degree College Shopian, J&K, India | India | Agricultural and Biological Sciences | Food Technology | Best Researcher Award | |