| Assoc Prof Dr | Congwen | Duan | North China Electric Power University | China | Best Researcher Award | popularengineer.org |
| Dr | Congxi | Fang | Institute of Mountain Hazards and Environment, Chinese Academy of Sciences | China | Best Researcher Award | popularengineer.org |
| Assoc. Prof. Dr | Corina | Moisa | University of Oradea | Romania | Outstanding Innovation Award | popularengineer.org |
| Assoc. Prof. Dr | Cyrille | BIsseye | USTM | Gabon | Best Researcher Award | popularengineer.org |
| Dr | da | shi | Zhejiang University | China | Best Researcher Award | popularengineer.org |
| Prof | Dahi | Ibrahim | National Institute of Standards | Egypt | Best Researcher Award | popularengineer.org |
| Dr | Dalia | El- Gazzar | national water research center | Egypt | Best Researcher Award | popularengineer.org |
| Dr | Danial | Waleed | University of Vermont | United States | Best Researcher Award | popularengineer.org |
| Dr | Daniela | Ticha | Department of Orthodontics, Regenerative and Forensic Dentistry, Faculty of Medicine, Comenius University in Bratislava, 81102 Bratislava, Slovakia | Slovakia | Best Researcher Award | popularengineer.org |
| Dr | Daniela | Fico | CNR-ISPC | Italy | Best Researcher Award | popularengineer.org |
| Assoc Prof Dr | Danijela | Domljan | University of Zagreb Faculty of Forestry and Wood Technology, department of Furniture and Wood in Constructions | Croatia | Best Researcher Award | popularengineer.org |
| Prof | Davide | Frumento | RomaTre University | Italy | Best Researcher Award | popularengineer.org |
| Assist. Prof. Dr | Davood | Zare | Iranian Research Organization for Science and Technology | Iran | Best Researcher Award | popularengineer.org |
| Mr | Dawit | Alemayehu | Hokkaido university | Japan | Best Researcher Award | popularengineer.org |
| Dr | Dayeong | An | Medical College of Wisconsin | United States | Best Researcher Award | popularengineer.org |
| Prof | Deepak | Pathania | Central University of Jammu | India | Best Researcher Award | popularengineer.org |
| Mr | Deribew | Tola | Salale University | Ethiopia | Best Researcher Award | popularengineer.org |
| Dr | Dhandapani | Raju | ICAR-IARI, New Delhi | India | Best Researcher Award | popularengineer.org |
| Dr | Dharambir | Sanghera | Uni of Oklahoma Health Sciences Center | United States | Best Researcher Award | popularengineer.org |
| Mr | Diaa | Alkhateeb | National Research University“Moscow Power Engineering Institute - The Second Faculty of Mechanical and Electrical Engineering, Damascus University | Russia | Best Researcher Award | popularengineer.org |