| Mr | Luis Antônio | Gonçalves Junior | International Centre for Numerical Methods in Engineering (CIMNE) | Spain | Materials Science | Fatigue/Structural analysis | Best Researcher Award | |
| Dr | Luis | Muro Ynoñán | Field Museum of Natural History | United States | Social Sciences | Archaeology/Anthropology | Best Researcher Award | |
| Dr | Luis | Loureiro | Centre of Biological Engineering - University of Minho | Portugal | Agricultural and Biological Sciences | Biological Engineering | Young Scientist Award | |
| Mr | Luís | Laím | https://www.uc.pt/ | Portugal | Engineering | Civil | Best Researcher Award | youngscientistawards.com |
| Dr | Luís | Marangoni Júnior | Institute of Food Technology - ITAL | Brazil | Other | Food Science / Food Technology / Food Packaging | Best Researcher Award | |
| Dr | Lucy | Smith | Materials Processing Institute | United Kingdom | Dentistry | Life Cycle Assessment | Best Researcher Award | |
| Dr | Lucy | Donegan | Universidade Federal da Paraíba | Brazil | Engineering | Architecture and Urbanism | Best Researcher Award | youngscientistawards.com |
| Ms | Lucrezia Cuen | Paxson | Washington State University | United States | Other | Interdisciplinary Project Based Learning | Best Researcher Award | |
| Ms | Lucky | Saikia | Centre of Plasma Physics - Institute for Plasma Research | India | Physics | Plasma Physics | Best Researcher Award | youngscientistawards.com |
| Dr | Luciano | Maria | São Paulo State University Faculty of Agrarian and Veterinary Science | Brazil | Environmental Science | Emission of greenhouse gases from the soil to the atmosphere | Best Researcher Award | |
| Mr. | LUCA | ZANNINI | UniMoRe | Italy | Engineering | Hydrogen Fuel Cells | Young Researcher Award | youngscientistawards.com |
| Prof Dr | Ľubomír | Švorc | Slovak University of Technology in Bratislava | Slovakia | Chemistry | Analytical Chemistry | Best Researcher Award | |
| Assist. Prof. Dr | Lu | Qin | Penn State College of Medicine | United States | Medicine and Dentistry | Physiology | Best Researcher Award | youngscientistawards.com |
| Ms | Lu | Yin | Sichuan University | China | Social Sciences | Public administration,Politics | Best Researcher Award | youngscientistawards.com |
| Dr | Lourdes | Gil Cardeza | CONICET-UNR | Argentina | Agricultural and Biological Sciences | arbuscular mycorrhiza; Living soil; Agroecologý | Best Researcher Award | |
| Ms | Loshini | Pillay | University of South Africa | South Africa | Environmental Science | Environmental management | Best Researcher Award | |
| Dr | Lorenzo | Ciletti | University of Southampton | Italy | Social Sciences | Education | Young Scientist Award | |
| Assoc. Prof. Dr | Long | Li | Qingdao University of Technology | China | Engineering | Technological Innovation; Digital Transformation; Infrastructure Sustainability | Young Scientist Award | |
| Assist Prof Dr | LOKENDRA | SINGH | KONERU LAKSHMAIAH EDUCATION FOUNDATION | India | Engineering | OPTICAL FIBER SENSORS | Best Researcher Award | |
| Mr | Logeshwaran A | | Vellore Institute of Technology (VIT-Vellore) | India | Materials Science | Additive manufacturing, Material characterization, Tissue engineering | Young Scientist Award | |