| Dr | Krishna | Pandey | Libera Universita Bolzano, Italy | Nepal | Environmental Science | Ecology, Environment and Protection of Mountain Areas | Best Researcher Award | environmentalscientists.org |
| Prof | Jitendra | Pandey | Banaras Hindu University, Varanasi, India | India | Environmental Science | Ganga River Ecology, River Ecology, Climate Change | Distinguished Scientist Award | environmentalscientists.org |
| Dr | Usha | Pandey | Mahatma Gandhi Kashi Vidaypith, Varanasi | India | Environmental Science | Ganga River Ecology, Plant Sciences, Algae | Women Researcher Award | environmentalscientists.org |
| Dr | Gaurav | Pandey | Forest Research Institute | India | Environmental and Sustainable Materials | Green Nanotechnology | Excellence in Scientific Innovation Award | environmentalscientists.org |
| Dr | Luca | Pallotti | Università politecnica delle Marche | Italy | Agricultural and Biological Sciences | viticulture | Best Researcher Award | environmentalscientists.org |
| Assoc. Prof. Dr | Sevim Pelin | Öztürk | Izmir Democracy University | Turkey | Environmental Science | urban food system planning | Best Researcher Award | environmentalscientists.org |
| Prof. Dr | Salih | Özer | Alparslan university | Turkey | Computer Science and Artificial Intelligence | Mechanical engineering | Research Excellence Distinction Award | environmentalscientists.org |
| Prof | Mutlu | Özcan | Center for Dental Medicine | Switzerland | Dentistry | Dental Materials | Best Researcher Award | environmentalscientists.org |
| Assoc. Prof. Dr | Mohammad | Oves | King Abdulaziz University | Saudi Arabia | Environmental and Sustainable Materials | Microbe interaction with materials | Outstanding Scientist Award | environmentalscientists.org |
| Dr | Jaroslav | Otta | University of Chemistry and Technology, Prague | Czech Republic | Nanotechnology | Gas sensor technologies | Best Researcher Award | environmentalscientists.org |
| Dr | Abdulrazak | Otaru | King Faisal University | Saudi Arabia | Engineering | Modelling and Simulation | Best Researcher Award | environmentalscientists.org |
| Dr | Zigmunds | Orlovskis | Latvian Biomedical research and Study Centre | Latvia | Agricultural and Biological Sciences | Plant-mycorrhiza interactions | Best Researcher Award | environmentalscientists.org |
| Ms | ANNE | OMWOYO | University of Nairobi | Kenya | Environmental Science | Land resources management | Best Researcher Award | environmentalscientists.org |
| Dr | Nourhen | OMRI | IPREM, UPPA, France | France | Environmental and Sustainable Materials | Rare Earth Elements recovery from mining waste | Best Researcher Award | environmentalscientists.org |
| Dr | Tosin | Omoya | Institut de mécanique et d'ingénierie (I2M) Bordeaux | France | Environmental Science | Thermal Comfort | Best Researcher Award | environmentalscientists.org |
| Assist. Prof. Dr | Rebaz | OMER | Koya University | Iraq | Chemistry and Materials Science | Organic and Computational Chemistry | Best Faculty Award | environmentalscientists.org |
| Dr | Marwa | Omar | Faculty of Medicine, Zagazig University | Egypt | Immunology and Microbiology | Medical Parasitology | Best Researcher Award | environmentalscientists.org |
| Assist. Prof. Dr | Gea | Oliveri Conti | Università degli Studi di Catania | Italy | Medicine and Health Sciences | Epidemiologia e valutazione del rischio | Pioneer Researcher Award | environmentalscientists.org |
| Dr | Afonso | Oliveira | Universidade Federal do Oeste do Pará - UFOPA | Brazil | Ecology and Conservation | Sensoriamento Remoto e Monitoramento Florestal | Young Scientist Award | environmentalscientists.org |
| Assoc. Prof. Dr | Rifat | Olgun | Akdeniz University | Turkey | Others | Landscape Architecure | Best Researcher Award | environmentalscientists.org |