| Dr | Fateme | Dehghan | Kermanshah University medical of sciences | Iran | Psychology | Pro-enviromental | Best Researcher Award | |
| Dr | Reem G. | Deghadi | Faculty of Science Cairo University | Egypt | Chemistry | Metal complexes preparation | Best Researcher Award | |
| Dr | Suryaprabha | Deenan | Nehru Arts and Science College, Coimbatore, Tamil Nadu | India | Computer Science | Computer Application in Agricultural Science | Women Researcher Award | |
| Dr | Pinku | Debnath | NIT Agartala | India | Engineering | Mechanical Engineering | Best Faculty Award | |
| Dr | Ermias | Debie | Bahir Dar University | Ethiopia | Environmental Science | natura resources management | Best Researcher Award | sciencefather.com |
| Dr | Sébastien | Debia | HEC Montréal | Canada | Economics, Econometrics and Finance | Energy Transition, Regional Integration | Best Research Award | |
| Assist Prof Dr | Nabamita | Deb | Gauhati University | India | Computer Science | BCI | Best Researcher Award | |
| Prof | Salvatore | De-Simone | Oswaldo Cruz Foundation | Brazil | Immunology and Microbiology | Diagnostic and microbial resistance assays | Best Researcher Award | sciencefather.com |
| Prof Dr | Michel | DE WAARD | Inserm UMR1087 - L'institut du thorax | France | Pharmacology, Toxicology and Pharmaceutical Science | cardiology / neurology | Best Researcher Award | |
| Dr | José | De Sordi | UNIFACCAMP e UNIFESP | Brazil | Business, Management and Accounting | Inovação | Best Research Award | |
| Prof | Juan | de Pablo | New York University | United States | Materials Science | Active Liquid Crystals | Best Researcher Award | sciencefather.com |
| Prof | Julieta | de Oliveira | Universidade Estadual de Santa Cruz | Brazil | Chemistry | Organic chemistry | Best Researcher Award | |
| Prof | pascale | de lonlay | Hopital Necker | France | Biochemistry, Genetics and Molecular Biology | Metabolism, Rhabdomyolysis | Best Researcher Award | |
| Dr | Diogo | de Lima Silva | Universidade Federal Fluminense | Brazil | Decision Sciences | MCDA/MCDM | Best Researcher Award | |
| Assoc Prof Dr | Vanderlei Aparecido | de Lima | UTFPR | Brazil | Other | Aprendizado de máquina | Outstanding Scientist Award | |
| Assist Prof Dr | Luis Mariano | de la Torre Fonseca | Hospital Docente Clínico Quírurgico Comandante Manuel Fajardo | Cuba | Health Professions | Cardiología/COVID-19/Unidad de Cuidados Intensivos | Best Researcher Award | |
| Prof Dr | José | de la Fuente | SaBio, Instituto de Investigación en Recursos Cinegéticos IREC-CSIC-UCLM-JCCM | Spain | Veterinary Science and Veterinary Medicine | Molecular Biology, Biotechnology, Vaccinology | Best Research Award | |
| Assoc Prof Dr | Adriana | De Jesus Soares | UNICAMP | Brazil | Dentistry | Endodontia/ Traumatismos dentários | Best Researcher Award | sciencefather.com |
| Prof Dr | Francesca | De Felice | Sapienza University of Rome - Policlinico Umberto I | Italy | Medicine and Dentistry | radioterapia | Best Researcher Award | |
| Dr | Debajyoti | De | Sukumar Sengupta Mahavidyalaya | India | Materials Science | Magnetism | Outstanding Scientist Award | |