| Mr | Onesme | NZASABAYEZU | Gandhi Institute of Technology and Management | India | Others | Poverty Alleviation Strategies for Sustainable Development | Best Researcher Award | View Profile |
| Dr | Onyekachi Kevin | Attah | Abia State College of Education Technical Arochukwu | Nigeria | Educational Innovation in Science | Building/Woodwork Technology | Innovative Research Award | View Profile |
| Dr | ORIOL | CANO ROCABAYERA | Universitat de Barcelona - IRBio | Spain | Ecology and Conservation | Ecotoxicology | Research Excellence Award | View Profile |
| Mr | Osama Bin | Shafaat | Aalto University | Finland | Astronomy and Astrophysics | Remote Sensing | Best Researcher Award | View Profile |
| Dr | Oscar Alfredo | Jaramillo Salgado | Universidad Nacional Autónoma de México | Mexico | Engineering | Renewable Energy | Excellence in Scientific Innovation Award | View Profile |
| Dr | Osvaldo | Valarini Junior | Universidade Tecnológica Federal do Parana | Brazil | Chemical Engineering | Tratamento de Água e Efluentes | Best Researcher Award | View Profile |
| Prof | Otari | Didmanidze | Departments of Tractors and Automobiles, Institute of Mechanical and Power Engineering Named After V.P. Goryachkin, Russian State Agrarian University—Moscow Timiryazev Agricultural Academy | Russia | Ecology and Conservation | Thermophysical processes of spontaneous combustion and forced ignition of solid disperse materials | Best Researcher Award | View Profile |
| Ms | Otgonpurev | Nergui | Nuclear Research Center, National university of Mongolia | Mongolia | Engineering | research of environmental issue, comparison of policy, engineering, physics | Best Researcher Award | View Profile |
| Mr | Ousmane | Wane | Polytechnic University of Madrid | Spain | Agricultural and Biological Sciences | AGRO-ENVIRONMENTAL | Best Researcher Award | View Profile |
| Prof. Dr | Özlem | Güzel | Akdeniz University | Turkey | Social Sciences | tourism psychology | Best Researcher Award | View Profile |
| Assoc. Prof. Dr | Pablo | Ruisoto | Public University of Navarre | Spain | Psychology | Basic Psychology | Excellence in Research Award | View Profile |
| Mr | Palinda | Perera | Earthlanka Youth Network | Sri Lanka | Environmental Science | Restoration Ecology and Ecosystem Rehabilitation | Research Excellence Award | View Profile |
| Dr | Palwasha | Gul | Henan university of technology, china | China | Others | Food Science and Engineering | Women Researcher Award | View Profile |
| Dr | PANAGIOTA | TSIATSIOU | AHEPA University Hospital | Greece | Medicine and Health Sciences | Laboratory / Virology | Best Researcher Award | View Profile |
| Prof. Dr | Panagiotis | Lagouvardos | National & Kapodistrian University of Athens-Dental School | Greece | Dentistry | Operative Dentistry | Research Excellence Distinction Award | View Profile |
| Assist. Prof. Dr | Pantelis | Sidiropoulos | Aristotle University of Thessaloniki | Greece | Engineering | Water Resources Management | Best Researcher Award | View Profile |
| Dr | Panupong | Hansrivijit | Brigham and Women's Hospital | United States | Environmental Science | Nephrology, Pharmacoepidemiology | Best Researcher Award | View Profile |
| Prof | Paola | Di Carlo | University of Palermo, IT | Italy | Medicine and Health Sciences | Health cancer and microbiome | Best Review Paper Award | View Profile |
| Mr | Paolo | Brasiliano | University of Rome "Foro Italico" | Italy | Others | Biomechanics and Gait Analysis | Best Researcher Award | View Profile |
| Assist. Prof. Dr | Paraschiva | Chereches-Panta | University of Medicine and Pharmacy Iuliu Hatieganu Cluj-Napoca | Romania | Medicine and Health Sciences | pediatric pneumology | Best Researcher Award | View Profile |