| Ms | Reyihanguli | Tudi | Xinjiang Normal University | China | Others | optical | Best Researcher Award | environmentalscientists.org |
| Dr | Reza | Fatahi-Alkouhi | University of Isfahan | Iran | Environmental Science | Hydraulic and Hydro-geology Engineering | Best Researcher Award | environmentalscientists.org |
| Dr | Richard | Usang | Heineken UK | United Kingdom | Environmental Science | Environmental Monitoring and Management | Best Researcher Award | environmentalscientists.org |
| Dr | Ridha | Guebsi | INRS | Canada | Agricultural Science and Innovation | Drone system technology | Best Researcher Award | environmentalscientists.org |
| Assoc. Prof. Dr | Rifat | Olgun | Akdeniz University | Turkey | Others | Landscape Architecure | Best Researcher Award | environmentalscientists.org |
| Mr | Rifeng | Guo | Inner Mongolia Agricultural University | China | Agricultural Science and Innovation | Agriculture | Research Excellence Award | environmentalscientists.org |
| Mr | Rinal | Prasad | University of Fiji | New Zealand | Renewable Energy Technologies | Renewable Energy Management | Best Researcher Award | environmentalscientists.org |
| Assist. Prof. Dr | Ritu | Kumari | Lovely Professional University | India | Biology and Life Sciences | botany | Best Researcher Award | environmentalscientists.org |
| Dr | Róbert | dr. Szendi | University of Debrecen | Hungary | Biochemistry, Genetics and Molecular Biology | Nutrition,microbiome and metabolic health | Research Excellence Distinction Award | environmentalscientists.org |
| Dr | Robert | Pomeroy | UC San Diego | United States | Environmental Science | Environmental Metabolomics | Best Researcher Award | environmentalscientists.org |
| Prof. Dr | Roberto Giovanni | Carbone | University of Genoa | Italy | Immunology and Microbiology | COVID-19 and Interstitial Lung Disease | Research Excellence Award | environmentalscientists.org |
| Assoc. Prof. Dr | Robson | Andreazza | Universidade federal de pelotas | Brazil | Environmental Science | Materiais sustentáveis | Excellence in Scientific Innovation Award | environmentalscientists.org |
| Prof | Robson | Andreazza | UFPel | Brazil | Environmental and Sustainable Materials | Materiais sustentáveis | Outstanding Contributions in Academia Award | environmentalscientists.org |
| Ms | Robyn | Henderson | NSW Department of Primary Industries and Regional Development | Australia | Agricultural and Biological Sciences | Invertebrates | Best Researcher Award | environmentalscientists.org |
| Prof. Dr | Rodica | Siminiuc | Technical University of Moldova | Moldova | Environmental Science | Air, Climate Change and Sustainability | Best Researcher Award | environmentalscientists.org |
| Prof. Dr | Roger | Falconer | Cardiff University | United Kingdom | Environmental Science | Water Science and Engineering | Best Researcher Award | environmentalscientists.org |
| Dr | Roghayeh | Jahdi | University of Mohaghegh Ardabi | Iran | Environmental Science | Natural hazards | Best Researcher Award | environmentalscientists.org |
| Prof | Roland | Kmeid | Saint Joseph University of Beirut | Lebanon | Dentistry | Orthodontics | Best Academic Researcher Award | environmentalscientists.org |
| Dr | Romulus | Mawa | China University of Geosciences (Wuhan) | China | Engineering | Rock Mechanics Engineering | Best Researcher Award | environmentalscientists.org |
| Assist. Prof. Dr | Ronnachai | Poowanna | Faculty of Natural Resources, Rajamangala University of Technology Isan Sakonnakhon Campus. | Thailand | Pharmacology, Toxicology and Pharmaceutical Science | International Environmental Scientists Award. | Best Researcher Award | environmentalscientists.org |