| Assoc. Prof. Dr | Rima | Isaifan | Cambridge C University | Qatar | Environmental Science | Air pollution and human health | Women Researcher Award | worldtopscientists.com |
| Mrs | Rim | Temani | Office National des Mines | Tunisia | Earth and Planetary Sciences | biostratigraphie et micropaleontologie | Women Researcher Award | |
| Dr | Rim | Bourgi | Strasbourg university | France | Dentistry | Esthetic and Prosthetic Dentistry | Best Researcher Award | worldtopscientists.com |
| Mr | Riley | Derby | The University of Texas at Austin | United States | Other | Primatology | Best Researcher Award | worldtopscientists.com |
| Dr | Richard | Arias-Hernandez | The University of British Columbia | Canada | Social Sciences | Archival Science | Best Researcher Award | worldtopscientists.com |
| Prof Dr | Ricardo | Silva | Physics/UFTM | Brazil | Materials Science | Condensed Matter Physics | Best Researcher Award | |
| Dr | Ricardo | Vasquez Padilla | Fortescue Zero | Australia | Energy | Renewable energy, CSP | Best Research Award | worldtopscientists.com |
| Dr | Riaz | Ahmad | Qilu Institute of Technology | China | Social Sciences | Social Sciences | Best Scholar Award | worldtopscientists.com |
| Dr | Reza | Fotohi | SBU | Iran | Computer Science | Security and Privacy | Best Researcher Award | worldtopscientists.com |
| Dr | reyhaneh | nassiri mansour | immunogenetic institue | Iran | Medicine and Dentistry | regenerative medicine | Women Researcher Award | worldtopscientists.com |
| Dr | Rengasamy | Parthasarathi | Department of Soil Science and Agricultural Chemistry, Anbil Dharmalingam Agricultural College and Research Institute (ADAC&RI), Trichy. | India | Agricultural and Biological Sciences | Bio surfactant, Biodegradation of LDPE | Best Researcher Award | worldtopscientists.com |
| Dr | Renee | Reynolds | University at Buffalo | United States | Neuroscience | Residency Training | Best Researcher Award | worldtopscientists.com |
| Prof. Dr | RENATO | AMBROSIO, JR | UNIRIO | Brazil | Medicine and Dentistry | Ophthalmology / Refractive Surgery | Best Researcher Award | worldtopscientists.com |
| Mr | Regent Retrospect | Musekwa | Botswana International University of Science and Technology | Botswana | Mathematics | Statistics | Best Researcher Award | worldtopscientists.com |
| Ms | razieh | davashi | Islamic Azad University, of Najafabad | Iran | Computer Science | Data mining | Best Researcher Award | worldtopscientists.com |
| Dr | Rayees | Ahmed | University of Kashmir | India | Earth and Planetary Sciences | Geography | Best Researcher Award | worldtopscientists.com |
| Dr | Ravi | vats | Q32 bio | United States | Biochemistry, Genetics and Molecular Biology | Cell and Molecular biology, Pharmacology | Best Researcher Award | worldtopscientists.com |
| Dr | Rasool | Sadeghi | Department of electrical engineering, DOL.C. , Islamic Azad University, Isfahan, Iran | Iran | Engineering | Wireless Network Optimization | Research Excellence Award | worldtopscientists.com |
| Dr | Rashid | Gholami | Razi University | Iran | Agricultural and Biological Sciences | post harvest technology | Best Researcher Award | worldtopscientists.com |
| Prof | Raquel | Conceicao | Institute of Biomedical Engineering and Biophysics, Faculty of Sciences, University of Lisbon (Instituto de Biofísica e Engenharia Biomédica, Faculdade de Ciências, Universidade de Lisboa) | Portugal | Engineering | Biomedical Engineering | Best Researcher Award | worldtopscientists.com |