| Dr | William | Odiete | Delta State University, Abraka | Nigeria | Engineering | Environmental Engineering & Petroleum Engineering | Best Researcher Award | View Profile |
| Mr | Deinsam | Ogan | University of Wolverhampton | United Kingdom | Earth and Planetary Sciences | Sustainable Construction, Mining and Environment | Frontier Researcher Award | View Profile |
| Assoc. Prof. Dr | maria livia | ognean | Lucian Blaga University Sibiu | Romania | Biochemistry, Genetics and Molecular Biology | Genetics | Best Researcher Award | View Profile |
| Dr | Gbekeloluwa | Oguntimein | Morgan State University | United States | Environmental Science | Wastewater | Best Researcher Award | View Profile |
| Prof | TOSHIFUMI | OHKUSA | juntendo | Japan | Immunology and Microbiology | Medicine | Best Researcher Award | View Profile |
| Prof | THERESA UGONWA | OKAFOR | CHUKWUEMEKA ODUMEGWU OJUKWU UNIVERSITY IGBARIAM CAMPUS NIGERIA | Nigeria | Other | PHYSICS EDUCATION | Women Researcher Award | View Profile |
| Dr | Olawale | Ola | University of Ibadan | Nigeria | Veterinary Science and Veterinary Medicine | Veterinary Pathology | Best Researcher Award | View Profile |
| Dr | Alexsandra Duarte de | Oliveira | Embrapa Cerrados | Brazil | Agricultural and Biological Sciences | Agrometeorologia/mudanças climáticas | Women Researcher Award | |
| Assoc Prof Dr | Marilene | Oliveira | unifesspa | Brazil | Chemistry | Química Orgânica/Química de Produtos Naturais/Química d emicrorganismo | Women Researcher Award | |
| Ms | Gea Marzia | Oliveri Conti | University of Catania | Italy | Medicine and Dentistry | Environmental health | Best Researcher Award | View Profile |
| Prof | Abiodoun Pascal | OLOUNLADE | National University of Agriculture | Benin | Agricultural and Biological Sciences | Biochemistry, Pharmacognosy, Zootechnics | Excellence in Innovation Award | View Profile |
| Assist. Prof. Dr | Štefan | Ondočko | Technical University of Košice | Slovakia | Engineering | Department of Production Systems and Robotics | Best Researcher Award | View Profile |
| Dr | Chinna | Orish | University Of Portharcourt Neuroscience Group | Nigeria | Neuroscience | NEUROTOXICOLOY | Best Research Article Award | View Profile |
| Dr | Bernard Eze | Orji | Alex Ekwueme Federal University, Ndufu-Alike Ebonyi State | Nigeria | Arts and Humanities | Theatre and Cultural Studies | Best Research Article Award | View Profile |
| Dr | Muhammad | Osman | King Saud University | Saudi Arabia | Physics and Astronomy | Thin film - Solar cells - Perovskite - Material Science | Best Researcher Award | View Profile |
| Prof. Dr | Magda | Osman | University of Cambridge/University of Leeds | United Kingdom | Social Sciences | Judgment and Decision Making | Best Researcher Award | View Profile |
| Prof. Dr | Martin | Ostoja-Starzewski | University of Illinois at Urbana-Champaign | United States | Engineering | mechanics | Best Researcher Award | View Profile |
| Dr | María Angélica | Ouellette | Lakeland Agricultural Research Association | Canada | Agricultural and Biological Sciences | Weed Science | Best Researcher Award | View Profile |
| Dr | Chourouk | Ouerghemmi | Chaire de recherche en Technologie, Durabilité et Société (Chaire TDS) à l'Université du Québec à Chicoutimi (UQAC) | Canada | Business, Management and Accounting | Marketing | Best Scholar Award | View Profile |
| Dr | Chourouk | OUERGHEMMI | Chaire TDS - UQAC | Canada | Business, Management and Accounting | Marketing | Best Researcher Award | View Profile |