| Prof. Dr | F. Patricio | Ojeda | Pont. Universidad Católica de Chile | Chile | Agricultural and Biological Sciences | Marine ecology | Best Researcher Award | youngscientistawards.com |
| Dr | Oluwafemi Adeleke | Ojo | Landmark University | Nigeria | Biochemistry, Genetics and Molecular Biology | Computational Biology | Best Researcher Award | |
| Mr | Obed | Ojonta | University of Nigeria | Nigeria | Economics, Econometrics and Finance | Development Economics | Best Scholar Award | |
| Dr | KENNEDY CHIENDU | OKAFOR | Federal University of Technology Owerri | Nigeria | Engineering | Computer Engineering /Networked Robotics/ Cyber-Physical Systems | Best Researcher Award | |
| Dr | CHIZOBA | OKEKE | NNAMDI AZIKIWE UNIVERSITY | Nigeria | Health Professions | HAEMATOLOGY AND BLOOD TRANSFUSION SCIENCE | Best Researcher Award | |
| Dr | AUGUSTINE | OKEKE | University of Cumbria | United Kingdom | Business, Management and Accounting | Sustainability | Best Researcher Award | |
| Mr | ISAAC | OKOLA | KCA UNIVERSITY | Kenya | Computer Science | ARTIFICIAL INTELLIGENCE/MACHINE LEARNING / EVOLUTIONARY ALGORITHMS | Best Researcher Award | |
| Mr | IKECHUKWU | OKORO | DAVID UMAHI FEDERAL UNIVERSITY OF HEALTH SCIENCES, UBURU, EBONYI STATE, NIGERIA | Nigeria | Biochemistry, Genetics and Molecular Biology | Medical Biochemistry | Best Researcher Award | |
| Dr | filiz | öktüren asri | Bati Akdeniz Agricultural Research Institute | Turkey | Agricultural and Biological Sciences | Soil Science and Plant Nutrition | Women Researcher Award | |
| Assoc. Prof. Dr | Filiz | Öktüren Asri | Bati Akdeniz Agricultural Research Institute | Turkey | Agricultural and Biological Sciences | Soil Science and Plant Nutrition | Women Researcher Award | youngscientistawards.com |
| Dr | Damla | Okulu | Celal Bayar University | Turkey | Engineering | Thermodynamic | Young Scientist Award | youngscientistawards.com |
| Ms | GAMZE | OKUR | Niigata University | Japan | Agricultural and Biological Sciences | Food science | Young Scientist Award | |
| Mr | Johnson | Oladele | Kings university | Nigeria | Biochemistry, Genetics and Molecular Biology | Toxicology, Phytoscience | Best Researcher Award | |
| Ms | Victoria Adedolapo | Olaposi | Department of Microbiology, University of Ibadan, Nigeria. | United Kingdom | Immunology and Microbiology | Enviromental Microbiology, Cellular and Molecular Biology, Biotechnology | Young Scientist Award | |
| Mr | Ezekiel | Olatunji | University of Wolverhampton | United Kingdom | Other | Built Environment/ Disaster Risk Reduction/ Flood Resilience | Best Researcher Award | youngscientistawards.com |
| Mr | Gamtesa | Olika | Wollega University | Ethiopia | Earth and Planetary Sciences | GIS | Best Researcher Award | |
| Assist Prof Dr | Abdullah | Olimat | AL-balqa applied university | Jordan | Engineering | thermal science | Best Researcher Award | |
| Dr | Adela | Oliva Chavez | University of Wisconsin, Madison | United States | Agricultural and Biological Sciences | Entomology | Young Scientist Award | youngscientistawards.com |
| Prof Dr | Ricardo | Oliveira | Universidade de São Paulo/Faculdade de Ciências Farmacêuticas | Brazil | Agricultural and Biological Sciences | Microbiologia Aplicada | Best Researcher Award | |
| Mr | Willian | Oliveira | Federal University of Santa Catarina | Brazil | Agricultural and Biological Sciences | algae ecophysiology | Young Scientist Award | youngscientistawards.com |