| Prof. Dr. | Mohamed | Othman | Zagazig University Faculty of Science | Egypt | Mathematics | Best Researcher Award | popularscientist.com |
| Ms. | Nifemi | Orimabuyaku | Redeemer's University | Nigeria | Arts and Humanities | Women Researcher Award | popularscientist.com |
| Mr. | Shola | Omoseeye | Ekiti state university, Ado Ekiti. | Nigeria | Pharmacology, Toxicology and Pharmaceutical Science | Young Researcher Award | popularscientist.com |
| Mr. | João | Oliveira | Instituto de Telecomunicações | Portugal | Computer Science | Best Researcher Award | popularscientist.com |
| Assoc. Prof. Dr. | Morteza | Oladnabi | Department of Genetics, School of Advanced Technologies in Medical Sciences Golestan University of Medical Sciences | Iran | Biochemistry, Genetics and Molecular Biology | Research Excellence Award | popularscientist.com |
| Mr. | Oluwasegun | Oladapo | Monash University Malaysia | Malaysia | Energy and Sustainability | Research Excellence Award | popularscientist.com |
| Mr. | Adeola | oketola | Tshwane University of Technology | South Africa | Engineering | Best Researcher Award | |
| Dr | Muritala | Oke | National Institute For Policy And Strategic Studies Kuru Jos | Nigeria | Earth and Planetary Sciences | Best Researcher Award | |
| Dr. | Stephen | Ojo | Anderson University | United States | Engineering | Outstanding Scientist Award | popularscientist.com |
| Prof. Dr. | Taehyoun | Oh | Kwangwoon University | South Korea | Engineering | Best Researcher Award | popularscientist.com |
| Assist. Prof. Dr. | Fırat | Oğuz | İnönü University Faculty of Dentistry Department of Orthodontics | Turkey | Dentistry | Best Researcher Award | popularscientist.com |
| Mr. | Adeyinka | Ogunsanya | University of Ilorin, Ilorin Kwara State | Nigeria | Engineering | Best Researcher Award | |
| Prof. Dr. | Ken'ich | Ogawa | Research Institute for Biological Sciences, Okayama | Japan | Agricultural and Biological Sciences | Research Excellence Award | popularscientist.com |
| Dr. | Tawakalitu | Odubiyi | INTI International University | Malaysia | Engineering | Best Researcher Award | popularscientist.com |
| Dr. | Kenneth | O'Connor | University of West Florida | United States | Business, Management and Accounting | Best Researcher Award | popularscientist.com |
| Assoc. Prof. Dr. | Chijioke | Nwachukwu | Horizons University Paris | France | Business, Management and Accounting | Excellence in Research | popularscientist.com |
| Mrs. | Isye | Nurhasanah | Institut Teknologi Sumatera | Indonesia | Engineering | Research Excellence Award | popularscientist.com |
| Amro | Nour | American University of Kuwait (AUK) | Kuwait | Engineering | Best Researcher Award | |
| Dr. | Ghada | Nouairia | Karolinska Insitute | Sweden | Medicine and Health Sciences | Women Researcher Award | popularscientist.com |
| Dr. | Mairi | Northcott | Melbourne Health | Australia | Engineering | Best Researcher Award | |