| Prof | Roberto | da Silva | University of Sao Paulo | Brazil | Atomic and Molecular Spectroscopy | photochemistry of coordination compounds | Best Researcher Award | View Profile |
| Dr | Robinson | Franco Alvarez | Universidade do Sao Paulo | Colombia | Atomic Physics | applied Physic | Best Researcher Award | View Profile |
| Prof Dr | Rohan | Senadeera | The Open University of Sri Lanka | Sri Lanka | Optical Physics | moleculer photovolataics | Best Researcher Award | |
| Prof. Dr | Rômulo | Santos | Santa Cruz State University, Ilhéus, Bahia | Brazil | Mathematical Physics | PDE/Fractional Differential Equation/Fluid Dynamics | Best Researcher Award | View Profile |
| Dr | Ronabson | Fernandes | UNINTER | Brazil | Particle Physics | climate | Best Researcher Award | View Profile |
| Dr | Rongxin | Fu | Beijing Institute of Technology | China | Optics | Biomedical optics | Best Researcher Award | View Profile |
| Prof | Rosa | Bernardini Papalia | University of Bologna, Department of Statistical Sciences | Italy | Quantum Information Science | Quantum Agriculture | Best Researcher Award | |
| Dr | Rosalind | Gillis | Deutsches Archäologiches Institut | Germany | Atomic and Molecular Spectroscopy | Archaeology | Best Researcher Award | View Profile |
| Prof Dr | Rosane | Collevatti | Universidade Federal de Goias | Brazil | Optical Physics | confocal laser scanning microscopy | Best Researcher Award | View Profile |
| Mrs | Rose | Anoke-Uzosike | University of Lagos | Nigeria | Plasma Physics | Magnetosphere-ionosphere system | Best Researcher Award | |
| Assoc Prof Dr | Roya | Mohammadzadeh kakhki | university of Gonabad | Iran | Optical Physics | photocatalyst and photoelectrochemical sensors | Optical Physics Excellence Award | View Profile |
| Mrs | Roya | Barati | sharif University of technology | Iran | Others | boi radiation engineering | Best Researcher Award | |
| Ms | Rutam | Biswal | University of Allahabad | India | Quantum Materials | Graphene Quantum Dots, Material Sciences, Analytical Chemistry, | Young Scientist Award | View Profile |
| Mr | S M Masfequier Rahman | Swapno | Centre for AI and Digital Health Technology Lab, the University of Queensland (UQ), Australia | Bangladesh | Molecular Physics | Medical Diagonosis | Best Researcher Award | View Profile |
| Prof | S.C. | Sharma | Jain Deemed to be University | India | Quantum Materials | Forensic Materials | Best Researcher Award | |
| Dr | Sabina | Botti | ENEA | Italy | Molecular Physics | Cultural heritage | Best Researcher Award | View Profile |
| Prof Dr | Sabrin | Ibrahim | Batterjee Medical College | Saudi Arabia | Others | Phytochemistry | Best Researcher Award | |
| Dr | Sadegh | Kaviani | Kazan Federal University | Russia | Molecular Physics | Energy storage materials | Best Researcher Award | |
| Prof. Dr | Sadiq | Ullah | University of Engineering and Technology Mardan | Pakistan | Electromagnetism | Metamaterials/Antennas/Telecommunications | Best Researcher Award | View Profile |
| Dr | SAEED | NASIRI | Nazarbayev University | Kazakhstan | Atomic Physics | computational | Best Researcher Award | |