| Dr. | Dali | Francis | uae uniuversity | United Arab Emirates | Agricultural and Biological Sciences | Women Researcher Award | popularscientist.com |
| Prof. | Damira | Jantassova | Saginov Technical University | Kazakhstan | Social Sciences | Best Scholar Award | popularscientist.com |
| Dr. | Dan | Li | University of Shanghai for Science and Technology | China | Artificial Neural Networks | Best Researcher Award | popularscientist.com |
| Prof. Dr. | Daniel | Garcia | UVic-UCC-Umanresa | Spain | Nursing and Health Professions | Breakthrough Research Award | popularscientist.com |
| Mr. | Daniel | Reyes García | Universidad de Las Palmas de Gran Canaria | Spain | Computer Science | Best Researcher Award | popularscientist.com |
| Mr. | Daniel | Tennyson | Bayero University, Kano | Nigeria | Engineering | Best Researcher Award | popularscientist.com |
| Mr. | Daroel | Fuentebella | Carlos Hilado Memorial State University | Philippines | Computer Science and Artificial Intelligence | Best Researcher Award | popularscientist.com |
| Mr. | David | Akolgo | Ball State University | United States | Psychology | Research Excellence Award | popularscientist.com |
| Dr. | David | Higgins | University of Liverpool | United Kingdom | Business, Management and Accounting | Best Researcher Award | popularscientist.com |
| Dr. | DEBASHIS | DUTTA | Mirmadan Mohanlal Govt. Polytechnic, Plassey, West Bengal | India | Biochemistry, Genetics and Molecular Biology | Best Researcher Award | popularscientist.com |
| Dr. | DEBDAS | MONDAL | S R F COOLEGE, MURSHIDABAD | India | Social Sciences | Excellence in Research | popularscientist.com |
| Dr. | Deepak Kumar | Dogra | Department of Physical Education, Faculty of Arts, Banaras Hindu University, Varanasi (UP) INDIA | India | Humanities and Science Integration | Best Researcher Award | popularscientist.com |
| Mr. | Deepak | Sharma | Banaras Hindu University | India | Arts and Humanities | Young Scientist Award | popularscientist.com |
| Mrs. | DEEPALAKSHMI | P | SRM Institute of Science and Technology | India | Mathematics | Best Researcher Award | popularscientist.com |
| Prof. Dr. | Dejuan | Wang | Sun-Yat Sen university, The sixth affiliated Hospital | China | Medicine and Health Sciences | Best Researcher Award | popularscientist.com |
| Mr. | Deme | Hirko | Stellenbosch University | South Africa | Engineering | Best Researcher Award | popularscientist.com |
| Prof. | Yumin | TAN | Beihang University | China | Energy and Sustainability | Best Researcher Award | popularscientist.com |
| Mrs. | DEVI | B | The Indian Polytechnic college | India | Energy and Sustainability | Best Researcher Award | popularscientist.com |
| Dr. | Diana | Martinez | Université Laval | Canada | Chemistry and Materials Science | Best Researcher Award | popularscientist.com |
| Assist. Prof. Dr. | Dibakar | Sahoo | Sambalpur University | India | Chemistry and Materials Science | Best Researcher Award | popularscientist.com |