| Assist. Prof. Dr | Kishor | Maharjan | Tribhuvan University | Nepal | Others | Microplastics | Best Researcher Award | scifat.com |
| Mr | Kishwar | Ali | University of L'Aquila Italy | Italy | Optical Physics | Nanophotonic and Metamaterials Design | Best Researcher Award | scifat.com |
| Ms | Konstantina | Papachristopoulou | University of Patras | Greece | Optical Physics | Photonics | Best Researcher Award | scifat.com |
| Dr | Kouao Laurent | KOUADIO | Central South University | China | Others | Geophysics | Best Researcher Award | scifat.com |
| Prof | Kulamani | Parida | Siksha 'O' Anusandhan ( Deemed to be university) | India | Others | Nano science and Heterogeneous catalysis | Outstanding Scientist Award | scifat.com |
| Ms | Kun | Hu | Beijing Normal University | China | Quantum Materials | Statistical physics | Best Researcher Award | scifat.com |
| Dr | Kuppusamy | Balasubramani | Hindusthan College of Engineering and Technology | India | Quantum Materials | Graphene oxide, Adsorption, Wastewater treatment | Best Researcher Award | scifat.com |
| Ms | Lamiya | Balayeva | Baku State University | Azerbaijan | Condensed Matter Physics | Semiconductor physics | Young Scientist Award | scifat.com |
| Dr | Latif Ullah | Khan | Synchrotron-light for Experimental Science and Applications in the Middle East | Jordan | Atomic and Molecular Spectroscopy | X-ray Emission Optical Luminescence | Innovation in Molecular Spectroscopy Award | scifat.com |
| Dr | Latif Ullah | Khan | Synchrotron-light for Experimental Science and Applications in the Middle East (SESAME) | Jordan | Atomic and Molecular Spectroscopy | X-ray Absorption Spectroscopy | Best Researcher Award | scifat.com |
| Assoc Prof Dr | Leandra | Franciscato Campo | Universidade Federal do Rio Grande do Sul | Brazil | Atomic and Molecular Spectroscopy | Organic Chemistry, Synthesis of Fluorescent Dyes, ESIPT dyes,Materials Chemistry, Organic-Inorganic Hybrids, Fluorescent Polymers and Materials, Organic Photochemistry | Women Researcher Award | scifat.com |
| Mr | Leandro | Paes de Brito | Federal University of Pernambuco | Brazil | Biophysics | Biochemistry | Best Researcher Award | scifat.com |
| Prof | Lei | Zhu | School of Computer and Control Engineering, Qiqihar University | China | Electromagnetism | electromagnetic and optical metamaterials, metasurfaces holographic, multi-dimensional information encryption, microwave antenna and devices | Best Researcher Award | scifat.com |
| Prof. Dr | Leonardo | Fortes | Federal University of Paraíba | Brazil | Biophysics | Sport Science | Best Researcher Award | scifat.com |
| Prof | Leslie | Glasser | Curtin University | Australia | Solid-State Physics | Thermochemistry | Best Researcher Award | scifat.com |
| Prof | Lewis | Antill | Sungkyunkwan University | South Korea | Biophysics | Quantum biology | Best Researcher Award | scifat.com |
| Mr | LI | Zhong | Institute of Disaster Prevention, China | China | Electromagnetism | Data processing | Best Researcher Award | scifat.com |
| Prof Dr | LIANG | ZHENG | Hangzhou Dianzi University | China | Experimental Physics | field electron emission and electric energy technology, power device/component packaging and thermal management technology, sensitive devices and fault diagnosis technology, and anti-EMI technology | Best Researcher Award | scifat.com |
| Dr | Likai | Du | Jinzhou Medical University | China | Molecular Physics | 1.Machine Learning and Molecular Force Filed for Intermolecular Interactions | Best Researcher Award | scifat.com |
| Prof | Lili | Zhao | Northwest University | China | Solid-State Physics | Dielectrics/Flexible dielectric materials/Capacitors | | scifat.com |