| Dr | Konstantin | Sergeenko | JSC NIKIET | Russia | Others | Computational fluid dynamics/DNS/Turbulence | Best Researcher Award | |
| Mr | Kishwar | Ali | University of L'Aquila Italy | Italy | Optical Physics | Nanophotonic and Metamaterials Design | Best Researcher Award | View Profile |
| Assist. Prof. Dr | Kishor | Maharjan | Tribhuvan University | Nepal | Others | Microplastics | Best Researcher Award | View Profile |
| Dr | Kirubhanand | Chandrasekaran | AIIMS Nagpur | India | Atomic and Molecular Spectroscopy | Spectroscopic, Solvent Effect, Molecular Docking and Molecular Dynamics Investigations on Phytocompounds from Elettaria cardamomum against Covid-19 | Best Researcher Award | |
| Mr | Kirill | Paperzh | Southern Federal Univetsity | Russia | Solid-State Physics | Hydrogen energy, electrocatalysts | Best Researcher Award | View Profile |
| Assoc. Prof. Dr | Kiran | Bajaj | Amity Institute of Applied Science | India | Particle Physics | Organic Luminophores | Best Researcher Award | View Profile |
| Dr | Kiran | Aftab | Government College University Faisalabad | Pakistan | Atomic and Molecular Spectroscopy | Analytical Chemistry | Best Researcher Award | View Profile |
| Mr | kia | khademi | Concordia University | Canada | Quantum Materials | Nonlinear Optics | Best Researcher Award | View Profile |
| Prof | KHIROUNI | Kamel | Faculté des Sciences de Gabès, University of Gabes | Tunisia | Solid-State Physics | Preparation and characterization of materials • Used techniques : Czochralski and Bridgman techniques of elaboration, Plasma Enhanced Chemical Vapor Deposition, Admittance spectroscopy, Photoluminescence and photocurrent spectroscopy, optical absorption, DLTS, Hall effect, Current –voltage measurements, Differential Thermal Analysis, …. | Optical Physics Excellence Award | View Profile |
| Dr | Khashayar | Ghandi | University of Guelph | Canada | Molecular Physics | Remote sensing | Excellence in Innovation | View Profile |
| Prof | Khalil | Sarkaeinejad | ShirazUniversity | Iran | Choose | Fluid dynamics and microstructural | Best Researcher Award | |
| Dr | Khalid | Omer | University of Sulaimani | Iraq | Others | Bioanalysis and nanomaterials | Best Scholar Award | |
| Assoc Prof Dr | Khalid | K. Ali | Al-azhar university | Egypt | Optical Physics | Mathematics | Best Researcher Award | |
| Mr | Khalid | Barkaoui | University of Liège | Belgium | Astrophysics | Exoplanets | Best Researcher Award | View Profile |
| Dr | Kevin | Dzobo | University of Cape Town | South Africa | Biophysics | Molecular physics | Research Excellence Award | View Profile |
| Dr | Kesyton | Ozegin | Ambrose Alli University, Ekpoma, Edo State, Nigeria | Nigeria | Experimental Physics | Solid Earth and Space Physics | Best Researcher Award | View Profile |
| Prof | Keke | Xu | Geodesy and Geophysics | China | Solid-State Physics | Solid Geophysics | Best Researcher Award | View Profile |
| Assist Prof Dr | Kavishankar | Gawli | Central University of Karnataka | India | Others | Biochemistry | Best Researcher Award | |
| Assoc. Prof. Dr | Katarzyna | Grochowska | Institute of Fluid-Flow Machinery Polish Academy of Sciences | Poland | Laser Physics | laser treatment | Best Researcher Award | View Profile |
| Ms | Karlygash | Dosmagulova | Institute of Mathematics and Mathematical Modeling | Kazakhstan | Mathematical Physics | Equations of Mathematical Physics/Mathematics/Theory of functions | Young Scientist Award | View Profile |