| Dr. | Rudimar | Nos | Universidade Tecnológica Federal do Paraná - UTFPR | Brazil | Analysis | Seleção preliminar COP awards | Best Researcher Award | View Profile |
| Mr | Kaan | Nuhoglu | University of Miami | United States | Polymer-Matrix composites | 3D printing of composites | Best Researcher Award | View Profile |
| Prof | massar najim | obaid | university of Babylon | Iraq | | bio polymer engineering/ /bio-materials | Women Researcher Award | |
| Mr | James | Obar | Egerton University | Kenya | Other | Agricultural value chain surveys | Best Researcher Award | View Profile |
| Mr | Victor | Ogbonna | Tshwane University of Technology, South Africa | South Africa | Polymer-Matrix composites | Corrosion control Engineering | Excellence in Research | |
| Assoc Prof. Dr | Seyedmahdi | Ojagh | University of Tehran | Iran | Coatings | sea food | Best Researcher Award | View Profile |
| Mr. | Olufisayo Emmanuel | Ojo | atmosfair Climate & Sustainability Limited | Nigeria | Environmental effects | Climate Protection and Sustainability | Best Researcher Award | View Profile |
| Dr. | Christiana Konamah | Okai-Mensah | Accra Technical University | Ghana | Environmental effects | Sustainability Assessment of Design and Production Practices of Ghanaian Textile Firms using the Triple Bottom Line (TBL) model | Excellence in Research | |
| Dr. | Kehinde Oladoke | Olatunji | University of Johannesburg | South Africa | Modeling | Application of artificial intelligence to renewable energy recovery from lignocellulose materials | Best Researcher Award | |
| Prof. Dr. | Maria | Olea | Institute of Continuing Education, University of Cambridge | United Kingdom | Environmental effects | Poultry Litter Biochars | Best Researcher Award | View Profile |
| Prof Dr | Eliezer | Oliveira | São Paulo State University (UNESP) | Brazil | | Mechanical properties of materials | Best Researcher Award | |
| Dr. | Ivo Vaz de Oliveira | Oliveira | CITAB/UTAD | Portugal | Coatings | Edible coatings and films | Best Researcher Award | View Profile |
| Dr. | Ochuko | Orakpoghenor | Ahmadu Bello University Zaria Nigeria | Nigeria | Other | Veterinary/ animal production | Best Researcher Award | |
| Dr. | Israel | Orimoloye | University of the West Indies | Trinidad and Tobago | Environmental effects | Climate change and Disaster Science | Outstanding Scientist Award | |
| Dr | Olumayowa | ORIYOMI | First Technical University, Ibadan | Nigeria | | Toxicology | Best Researcher Award | |
| Dr | Ebrahim | Oromiehie | University of New South Wales Sydney | Australia | Prototyping | Smart CFRP hydrogen storage | Best Researcher Award | View Profile |
| Prof. | Ozlem | Oter | Dokuz Eylül University | Turkey | Analysis | optical chemical sensors | Best Researcher Award | View Profile |
| Dr. | Cherif | Othmani | TU Dresden | Germany | Properties and Performance | Acoustic waves in composite structures | Best Researcher Award | View Profile |
| Assoc Prof Dr | Mike | Otieno | University of the Witwatersrand, Johannesburg | South Africa | | Durability Performance of Structural Concrete | Best Researcher Award | |
| Prof | Yixiang | Ou | Beijing Academy of Science and Technology | China | | Ceramics coatings | Best Researcher Award | |