| Dr | RAMESH KUMAR | RAJI | UNITED ARAB EMIRATES UNIVERSITY | United Arab Emirates | Condensed Matter Physics | Energy Storage Supercapacitors, Batteries | Best Researcher Award | View Profile |
| Prof. Dr | Rami Ahmad | El-Nabulsi | CESNET | Czech Republic | Quantum Optics | Complex systems | Outstanding Scientist Recognition Award | View Profile |
| Prof Dr | Ravi | Nirlakalla | RGM College of Engineering & Technology | India | Quantum Materials | Photonics | Best Researcher Award | |
| Dr | Ravi | Bathe | International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), India | India | Laser Physics | Ultrafast laser interaction | | View Profile |
| Prof | Ravinder Singh | Sawhney | Guru Nanak Dev University | India | Molecular Physics | Molecular Electronics | Excellence in Research | |
| Mr | RAZAT | KHARGA | Yuan Ze University | Taiwan | Optics | Optical Fiber Networking | Best Researcher Award | View Profile |
| Dr | Resham | Thapa | University of Wyoming | United States | Atomic and Molecular Spectroscopy | Char materials as a soil amendment | Best Researcher Award | View Profile |
| Prof | Ricardo | Torres | FEI | Brazil | Molecular Physics | Spectroscopy | Best Researcher Award | View Profile |
| Mr | Richard | Djimasbe | Kazan Federal University | Russia | Others | Petrochemistry and petroleum engineering | Best Innovation Award | |
| Prof | Rinaldo | Santonico | University of Roma "Tor Vergata" | Italy | Atomic and Molecular Astrophysics | search of gamma photons in cosmic radiation | Excellence in Research | View Profile |
| Dr | Rizwan | Ahmed | National Centre for Physics, Islamabad, Pakistan | Pakistan | Atomic Physics | Laser Physics and spectroscopy | Best Researcher Award | |
| 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 |