| Mr. | Javier | Letamendi | Imperia College London | Others | United Kingdom | Best Researcher Award | |
| Assist Prof Dr | Jeeyeon | Lee | Kyungpook National University Hospital | Cancer Genetics | South Korea | Best Researcher Award | |
| Dr | Grace | Lee | Brigham and Women's Hospital | Radiation Oncology | United States | Best Research Award | |
| Dr. | Pei-Chih | Lee | China Medical University | Cancer Cell Biology | Taiwan | Best Researcher Award | |
| Dr. | Céline | Lechartier | CHU HDQ Québec | Oncology Therapeutics and Novel Approaches | Canada | Best Researcher Award | |
| Dr. | Jordan | Leal | University of Kansas Cancer Center | Stem Cell Therapy | United States | Best Researcher Award | pencis.com |
| Dr | Florence | Le Calvez-Kelm | International Agency for Research on Cancer | Cancer Biomarkers | France | Best Researcher Award | |
| Dr. | Trung | Le | University of Toronto | Pharmaco-Oncology | Canada | Best Researcher Award | |
| Dr | Ido | Laskov | Tel Aviv Sourasky Medical Center | Oncology Management and Prevention | Israel | Best Researcher Award | |
| Dr | Valerie | Larouche | CHU de Québec-Université Laval | Oncology Management and Prevention | Canada | Best Researcher Award | |
| Dr. | Roberta | Lanzara | University "G. d'Annunzio" of Chieti and Pescara | Others | Italy | Best Researcher Award | pencis.com |
| Dr. | Lan | Lan | the First affiliated hospital of Guangzhou Medical University | | China | Research Excellence Award | pencis.com |
| Dr. | Richard | Laga | Institute of Macromolecular Chemistry CAS | Others | Czech Republic | Best Researcher Award | |
| Prof | Youngjoo | Kwon | Ewha Womans University | Oncology Therapeutics and Novel Approaches | South Korea | Best Researcher Award | |
| Dr. | Hiu Yee | Kwan | Hong Kong Baptist University | Others | Hong Kong | Women Researcher Award | pencis.com |
| Mr | Devidas | Kushnure | Vidya Pratishthn's Kamalnayan Bajaj Institute of Engineering and Technology Baramati Maharashtra India | Others | India | Best Researcher Award | |
| Mr. | Henok | Kumsa | Woldia University | Others | Ethiopia | Best Researcher Award | |
| Dr | Bhupendra | Kumar | Debre Tabor University Ethiopia | Others | Ethiopia | Best Faculty Award | |
| Prof | Olga | Krizanova | Institute of Clinical and Translational Research | Oncology Therapeutics and Novel Approaches | Slovakia | Best Researcher Award | |
| Dr. | Petr | Kovarik | Northumbria NHS Foundation Trust | Oncology Therapy | United Kingdom | Best Researcher Award | |