| Prof | Mohamed | Omar | King Fahd University | Saudi Arabia | Earth and Planetary Sciences | Petroleum Geology | Best Paper Award | |
| Mr | Ayomide | Olubaju | First Technical University Ibadan | Nigeria | Environmental Science | Geology | Research Excellence Award | bestpaperawards.com |
| Mrs | Tamires | Oliveira | Federal University of Rio de Janeiro | Brazil | Agricultural and Biological Sciences | Food Science | Best Researcher Award | |
| Prof Dr | Alessandra | Oliveira | Universidade de São Paulo | Brazil | Agricultural and Biological Sciences | Engenharia de Alimentos | Best Researcher Award | |
| Dr | Olawale | Olayide | University of Ibadan | Nigeria | Agricultural and Biological Sciences | Agri-preneurshup and sustainable development | Most Reader's Article Award | |
| Assist Prof Dr | Maria Elena | Olante | Università Cattolica del Sacro Cuore | Italy | Business, Management and Accounting | Accounting | Most Reader's Article Award | |
| Dr | mikail | olam | firat üniversity | Turkey | Engineering | fuels and combustion, material science | Best Researcher Award | |
| Dr | Mikail | Olam | Firat Universty | Turkey | Engineering | Fuels and combustion, material science | Best Researcher Award | |
| Mr | Bolaji | Oladipo | University of Rhode Island | United States | Engineering | Mechanical Engineering | Best Researcher Award | bestpaperawards.com |
| Dr | oluwasanmi | Olabode | Covenant University | Nigeria | Engineering | Petroleum Engineering/Reservoir Engineering/Enhanced oil recovery and Optimization | Best Researcher Award | |
| Dr | Enyioma | Okpara | North-West University | South Africa | Chemistry | Electrochemistry | Best Researcher Award | |
| Dr | Chinwe | Okonkwo | Nnamdi Azikiwe University, Awka. | Nigeria | Chemistry | Analytical Chemistry | Best Researcher Award | |
| Dr | Xavier-Itam | Okon | National Collateral Registry | Nigeria | Economics, Econometrics and Finance | Central banking | Best Researcher Award | |
| Ms | AWELE | OKOLIE | wit | United States | Computer Science | finance | Excellence in Research Award | bestpaperawards.com |
| Assist. Prof. Dr | Saidani | okba | univ-BBA | Algeria | Energy | solar cells | Best Researcher Award | bestpaperawards.com |
| Mr | Suvendu | Ojha | Institute of Life Sciences, Bhubaneswar | India | Immunology and Microbiology | Bacteriology | Best Researcher Award | bestpaperawards.com |
| Mr | Jude | Ojero | University of Manchester | United Kingdom | Earth and Planetary Sciences | Geology | Best Researcher Award | |
| Prof | RAUL | OJEDA | Biosynthesis Medical, C.A | Venezuela | Immunology and Microbiology | Infectious diseases / COVID-19 | Best Researcher Award | |
| Dr | Kazutaka | Ohi | Gifu University Graduate School of Medicine | Japan | Medicine and Dentistry | Psychiatry | Best Researcher Award | bestpaperawards.com |
| Dr | Yasuhiro | Ohara | Reproduction Clinic Osaka | Japan | Medicine and Dentistry | Reproductive Medicine | Best Researcher Award | bestpaperawards.com |