| Prof. | Noha | Elkady | Menoufia University, Faculty of Medicine | Cancer Biomarkers | Egypt | Research Excellence Award | pencis.com |
| Dr. | Nour | Abu jayab | Sharjah university | Cancer Cell Biology | United Arab Emirates | Innovative Research Award | pencis.com |
| Prof Dr | Nuno | Vale | Faculty of Medicine, University of Porto | Pharmaco-Oncology | Portugal | Excellence in Research | |
| Assoc. Prof. Dr. | Nuray | Varol | Gazi University, Faculty of Medicine, Department of Medical Biology and Genetics | Cancer Genetics | Turkey | Women Researcher Award | |
| Assoc. Prof. Dr. | Nursabah | SARIKAVAKLI | Aydın Adnan Menderes University | Targeted Cancer Therapy | Turkey | Best Researcher Award | |
| Dr. | Ohidul | Alam | Jiangsu University | Oncology Case Reports | China | Best Researcher Award | pencis.com |
| Dr. | Ohidul | Alam | Jiangsu University | Cancer Science | China | | pencis.com |
| Dr. | Okechukwu | Obulezi | Nnamdi Azikiwe Univeristy, Awka, Nigeria | | Nigeria | Best Paper Award | pencis.com |
| Prof | Ola | Omran | Qassim University | Cancer Science | Saudi Arabia | Best Researcher Award | |
| Prof | Ola | Omran | College of Medicine- Qassim University | Cancer Biomarkers | Saudi Arabia | Best Researcher Award | |
| Dr | Olga | Sukocheva | Flinders University of South Australia | Targeted Cancer Therapy | Australia | Best Researcher Award | |
| Prof | Olga | Krizanova | Institute of Clinical and Translational Research | Oncology Therapeutics and Novel Approaches | Slovakia | Best Researcher Award | |
| Mr. | omar | alqaisi | Al-Zaytoonah University of Jordan | Oncology Nursing | Jordan | Best Researcher Award | pencis.com |
| Mr. | omar | alqaisi | Omar Alqaisi, MsN. Al-Zaytoonah University of Jordan, Faculty of Nursing, Amman- Jordan. Mobile #: (+962) 780598881. E mail: omaralqaisi119@gmail.com | Oncology Nursing | Jordan | Research Excellence Award | pencis.com |
| Prof | Omnia | Kandil | Ntional Reserch Centre | Oncology Alternative Medicine | Egypt | Best Researcher Award | |
| Dr | Osama | Awad | Minia University | Others | Egypt | Best Research Award | |
| Assist. Prof. Dr. | Osman Vefa | Gul | Selcuk University/ Radiation Oncology | Radiation Oncology | Turkey | Best Researcher Award | |
| Dr. | Osnat | Elyashiv | Gynecologic Oncology Unit, Edith Wolfson Medical Center, affiliated to Gray faculty of Health Sciences, Tel Aviv University | Oncology Therapy | Israel | Research Excellence Award | pencis.com |
| Dr | Özlem | Çoban | Karadeniz Technical University | Targeted Cancer Therapy | Turkey | Best Researcher Award | |
| Prof | paola | gazzaniga | sapienza university of rome | Oncology and Precision Medicine | Italy | Best Research Award | |