| Prof Dr | Vilem | Novak | University of Ostrava, IRAFM | Czech Republic | Computer aided machine design | Fuzzy modeling | Best Researcher Award | |
| Mr | Md. | Nuruzzaman | Uttara University, Uttara, Dhaka-1230, Bangladesh | Bangladesh | Computer aided machine design | PDEs and Fluid dynamics | Best Researcher Award | |
| Prof Dr | Sunday | Obalum | University of Nigeria Nsukka | Nigeria | Facilities management | Soil Science | Best Researcher Award | |
| Dr | Ammar | Odeh | Princess Sumaya University for Technology | Jordan | Others | CYBERSECURITY | Best Researcher Award | View Profile |
| Dr | Saheed | Ogundiran | LAUTECH | Nigeria | Fluid mechanics | Fluid Dynamics | Best Researcher Award | View Profile |
| Mr | Olusegun | Ojewola | Ladoke Akintola University of technology, Ogbomoso, Oyo State, Nigeria | Nigeria | Fluid mechanics | Nanofluid/particles (Computational fluid dynamics) | Best Researcher Award | View Profile |
| Dr | Oluseye | Olugboyega | Obafemi Awolowo University | Nigeria | Others | Construction Engineering and Management/ Construction Management/ Corruption Management and Control | Best Researcher Award | |
| Dr | Oluseye | Olugboyega | Obafemi Awolowo University | Nigeria | Others | BIM/Construction Management/Corruption and construction politics | Best Researcher Award | |
| Dr | Hewida | Omara | Tanta University | Egypt | Fluid mechanics | Hydrodynamic | Women Researcher Award | View Profile |
| Ms | Faiza | Omari | University of Medea Algeria | Algeria | Others | Biomechanics and biomedical engineering; Computer Aided Design In Mechanical Engineering; Optical properties | Excellence in Research | |
| Dr | issa | omle | Miskolc university | Hungary | Computer technology for design and simulation | Heat transfer simulation | Best Researcher Award | View Profile |
| Assist. Prof. Dr | salma | ommi | Shahid Beheshti University | Iran | Others | Crisis management, seismology | Best Researcher Award | View Profile |
| Mr | Bamidele | Omotara | university of new haven | United States | Quality control | quality control analyst | Excellence in Research Award | View Profile |
| Assist. Prof. Dr | Ceren | Orak | Sivas University of Science and Technology | Turkey | Computer aided machine design | Hydrogen production | Best Researcher Award | View Profile |
| Dr | SARA | ORKHIS | National School of Arts and Crafts (ENSAM), Meknes 50500, Morocco | Morocco | Others | science de l’ingénieur | Best Paper Award | View Profile |
| Prof Dr | José A. | Orosa | University of A Coruña | Spain | Industrial engineering | Energy/Maintenance/Big Data/Naval Architecture | Best Researcher Award | |
| Dr | Abiodun | Osaiyuwu | University of Benin | Nigeria | Others | Child Protection | Best Researcher Award | |
| Assist. Prof. Dr | Osman | Osman | Qassim University | Saudi Arabia | Others | Functional analysis | Best Researcher Award | View Profile |
| Prof | Sarah | Ostadabbas | Northeastern University | United States | Computer technology for design and simulation | Computer Vision and Machine Learning | Best Faculty Award | |
| Prof. Dr | Nazar | Oukaili | University of Baghdad | Iraq | Materials selection and structural design | Structural Engineering | Best Researcher Award | View Profile |