| Predrag | Petrović | Faculty of Technical Sciences Čačak, University of Kragujevac | Serbia | Engineering | electronics | worldtopscientists.com |
| Pratap Kumar | Dakua | Vignan’s Institute of Information Technolgy (A), Duvada, Vishakaptnam | India | Engineering | Solar Cell | worldtopscientists.com |
| Prashant | Awasthi | Accenture LLP | United States | Computer Science | Artifical Intelligence and Machine learning | worldtopscientists.com |
| Prangya | Rath | NA | India | Biochemistry, Genetics and Molecular Biology | Biotechnology | worldtopscientists.com |
| Pramod | Nehete | UT MD Anderson cancer center | United States | Immunology and Microbiology | Non-Human primates | worldtopscientists.com |
| Pramod Kumar | Sharma | Banaras Hindu University | India | Agricultural and Biological Sciences | SOIL SCIENCE | worldtopscientists.com |
| Polpat | Nilubon | Rajamangala University of Technology Thanyaburi | Thailand | Environmental Science | Urban Flood Resilience and Adaptation | worldtopscientists.com |
| Piotr | Holnicki | Polish Academy of Sciences, Systems Research Institute | Poland | Environmental Science | Mathematics, Computer Science | worldtopscientists.com |
| Pin Jern | Ker | Universiti Tenaga Nasional | Malaysia | Energy | Renewable & clean energy sources, Energy Storage | worldtopscientists.com |
| Pilar | Bosque Varela | Christian Doppler klinik | Austria | Neuroscience | Neurology | worldtopscientists.com |
| Pietro | Papa Lopes | Argonne National Laboratory | United States | Energy | Electrochemistry | worldtopscientists.com |
| Piero | Bianco | UNMC | United States | Biochemistry, Genetics and Molecular Biology | Biophysics and Microscopy | worldtopscientists.com |
| Peter | Klco | University of Žilina | Slovakia | Computer Science | automated object detection | worldtopscientists.com |
| Peng | Gu | donghua university | China | Engineering | Ultra-precision machining and testing technology | worldtopscientists.com |
| Pedro | Jose | The George Washington University School of Medicine & Health Sciences | United States | Medicine and Dentistry | Pharmacogenomics of Hypertension | worldtopscientists.com |
| Pedro | Abreu Sánchez | Servicio de Medicina Nuclear Hospital Universitario Dr. Peset (Valencia) | Spain | Medicine and Dentistry | Cirugía Radioguiada | worldtopscientists.com |
| Pawan | Kumar | Indian Institute of Technology Bhubaneswar | India | Engineering | Waste Utilization, Concrete Technology | worldtopscientists.com |
| Pavuluri Srinivasa | Rao | Indian Institute of Technology Kharagpur | India | Agricultural and Biological Sciences | Food Process Engineering | worldtopscientists.com |
| Pavol | Nejedlik | Earth Science Institute v.v.i. of Slovak Academy of Science | Slovakia | Other | Climatology, phenology | worldtopscientists.com |
| Pavan | Kumar | Rani Lakshmi Bai Central Agricultural University | India | Earth and Planetary Sciences | Remote Sensing | worldtopscientists.com |