| Dr | Dhananjayan | Venugopal | ICMR-Vector Control Research Centre (VCRC), Puducherry | India | Environmental Science | Environmental Toxicology | Best Researcher Award | environmentalscientists.org |
| Mrs | Diana | COSTINEL | National R&D Institute for Cryogenics and Isotopic Technologies ICSI Ramnicu Valcea | Romania | Environmental Science | Environmental study and food security using stable isotopes CHNO fingerprint | Women Researcher Award | environmentalscientists.org |
| Dr | Diana-Ioana | Gavra | Faculty of Medicine and Pharmacy, University of Oradea | Romania | Medicine and Health Sciences | Psoriasis | Best Researcher Award | environmentalscientists.org |
| Dr | Diego | Guevara Torres | The University of Adelaide | Australia | Agricultural and Biological Sciences | Remote sensing | | environmentalscientists.org |
| Dr | Dilan | Kalaycı Alas | Near East University | Turkey | Others | Teacher training, Turkish language teaching, Language teaching, AI in education. | Best Researcher Award | environmentalscientists.org |
| Assoc. Prof. Dr | Dimitrina | Koeva | Technical University of Gabrovo | Bulgaria | Renewable Energy Technologies | Energy and Sustainability | Best Researcher Award | environmentalscientists.org |
| Mr | Dimitrios | Marinis | Univeristy of Patras | Greece | Chemistry and Materials Science | Recycling/Sustainability/Circular economy/Composites | Young Scientist Award | environmentalscientists.org |
| Prof. Dr | Dimitrios | Petropoulos | University of Peloponnese | Greece | Agricultural and Biological Sciences | Agriculture economy | Research Excellence Award | environmentalscientists.org |
| Prof | Dimitrios | Bakaloudis | Aristotle University of Thessaloniki, School of Forstry and Natural Environment | Greece | Biology and Life Sciences | Invasion Ecology | Research Excellence Award | environmentalscientists.org |
| Mr | Dimitrios-Aristotelis | Koumpakis | Aristotle University of Thessaloniki | Greece | Engineering | Waste to Energy | Best Researcher Award | environmentalscientists.org |
| Assoc. Prof. Dr | Dimitris | Klaoudatos | University of Thessaly | Greece | Agricultural and Biological Sciences | Fisheries | Best Researcher Award | environmentalscientists.org |
| Assoc. Prof. Dr | Dina | Sidani | Saint Joseph University of Beirut | Lebanon | Business, Management and Accounting | Management, Human Resources Management, Decision Making | Best Researcher Award | environmentalscientists.org |
| Dr | DIOGO | DA FONSECA SOARES | Brazilian Urban Train Company / University of Granada | Brazil | Environmental Science | CLIMATE CHANGE | Best Researcher Award | environmentalscientists.org |
| Dr | Dismas Odhiambo | Oketch | University of Nairobi | Kenya | Health Professions | One Health | Best Research Article Award | environmentalscientists.org |
| Prof | Domenico | Trombetta | Università di Messina Dipartimento ChiBioFarAm | Italy | Pharmacology, Toxicology and Pharmaceutical Science | Valorizzazione di scarti agro-alimentari di interesse salutistico | Best Researcher Award | environmentalscientists.org |
| Mr | Dominic | Ndulue | University of Nigeria | Nigeria | Environmental Science | Geography | Best Researcher Award | environmentalscientists.org |
| Mr | Dominik | Szieber | University of Pécs, Faculty of Sciences, Institute of Biology, Pécs, Hungary; National Laboratory of Virology, Szentágothai Research Centre, University of Pécs, Hungary | Hungary | Immunology and Microbiology | Virology | Academic Brilliance Recognition Award | environmentalscientists.org |
| Mr | Dongchang | Kang | Sogang University | South Korea | Business, Management and Accounting | Financial Accounting | Best Researcher Award | environmentalscientists.org |
| Prof | Donny W. | Suh | University of California at Irvine | United States | Health Professions | AI | Best Researcher Award | environmentalscientists.org |
| Dr | Dora | Pugliese | University of Miami | United States | Environmental and Sustainable Materials | CIVIL AND ARCHITECTURAL ENGINEERING | Best Innovation Award | environmentalscientists.org |