| 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 | |
| Ms | Lucky | Saikia | Centre of Plasma Physics - Institute for Plasma Research | India | Physics | Plasma Physics | Best Researcher Award | youngscientistawards.com |
| Ms | Lucrezia Cuen | Paxson | Washington State University | United States | Other | Interdisciplinary Project Based Learning | 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 |
| 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 | |
| Mr | Luis Antônio | Gonçalves Junior | International Centre for Numerical Methods in Engineering (CIMNE) | Spain | Materials Science | Fatigue/Structural analysis | Best Researcher Award | |
| Dr | Luis Arturo | Gómez-Landero | Universidad Pablo de Olavide | Spain | Social Sciences | Sport sciences | Best Researcher Award | youngscientistawards.com |
| Ms | Luís Henrique | Bordin | Universidade Federal do Rio Grande | Brazil | Environmental Science | Oceanography | Young Scientist Award | |
| Dr | Luísa | Viana | State University of Northern Fluminese Darcy Ribeiro | Brazil | Environmental Science | Biogeochemistry | Best Researcher Award | |
| Mrs | Luiza | de Castro Fernandes | UNICAMP | Brazil | Medicine and Dentistry | Dermatologia | Young Scientist Award | |
| Dr | Lukas | Beno | Faculty of Electrical Engineering and Information Technology of STU in Bratislava | Slovakia | Computer Science | Cloud and Edge Computing in Industry | Best Researcher Award | |
| Mrs | Lum Sonita | Awah | University of the Free State | South Africa | Other | Disaster Risk Management | Young Scientist Award | |
| Assoc Prof Dr | Lumír | Gvoždík | Institute of Vertebrate Biology AS CR | Czech Republic | Agricultural and Biological Sciences | Evolutionary and physiological ecology | Best Researcher Award | youngscientistawards.com |
| Ms | Lydia | Ahlstrom | Wesleyan University | United States | Mathematics | Pure Mathematics | Best Researcher Award | |
| Ms | Lydia | Papadaki | ATHENA RC | Greece | Social Sciences | Economics and stakeholders engagement | Young Scientist Award | youngscientistawards.com |
| Dr | M S | LATHA | R L SCIENCE INSTITUTE | India | Chemistry | Nano materials | Women Researcher Award | |