| OzSE | Ozone: Science and Engineering | In English | → Meteorology, climatology |
| P&SS | Planetary and Space Science | In English | → Astronomy |
| PA | Popular Astronomy | In English | → Astronomy |
| PA | Présence Africaine | In French | → Politics |
| PAAS | Publications of the American Astronomical Society | In English | → Astronomy |
| PAB | Publications of The Astrophysics Branch Ottawa | In English | → Astronomy |
| PABei | Progress in Astronomy | In English | → Astronomy |
| PACPhA | Proceedings of the American Catholic Philosophical Association | In English | → Philosophy, psychology → Roman catholic church |
| PadCR | Osservatorio Astronomico di Padova - Comunicazioni e Rassegne | In Italian | → Astronomy |
| PADEU | Publications of the Astronomy Deparment of the Eotvos Lorand University | In English | → Astronomy |
| PAIB | Publications of the Astronomy Institute of Bonn | In English | → Astronomy |
| PAICU | Publications of the Astronomical Institute of the Charles University | In English | → Astronomy |
| PAICz | Publications of the Astronomical Institute of the Czechoslovak Academy of Sciences | In English | → Astronomy |
| PAIKH | Publikationen des Astrophysikalischen Instituts Königstuhl-Heidelberg | In German | → Astronomy |
| Palb | Paleobiology | In English | → Palaeontology → Biological sciences |
| PAllO | Publications of the Allegheny Observatory of the University of Pittsburgh | In English | → Astronomy |
| PalOc | Paleoceanography | In English | → Palaeontology → Marine research, oceanography |
| PAMS | Proceedings of the American Mathematical Society | In English | → Mathematics |
| PAN | Physics of Atomic Nuclei | In English | → Nuclei |
| PApCh | Pure and Applied Chemistry | In English | → Chemistry |
| PApGe | Pure and Applied Geophysics | In English | → Geophysics |
| PAPhS | Proceedings of the American Philosophical Society | In English | → Philosophy, psychology |
| PApPh | Pure and Applied Physics | In English | → Physics |
| ParC | Parallel Computing | In English | → Computer science |
| PaReL | Pattern Recognition Letters | In English | → Computer-based techniques |
| PASA | Publications of the Astronomical Society of Australia | In English | → Astronomy |
| PASAu | Proceedings of the Astronomical Society of Australia | In English | → Astronomy |
| PASJ | Publications of the Astronomical Society of Japan | In English | → Astronomy |
| PASK | Publications of the Academy of Science Kasakstan | In English | → Astronomy |
| PASP | Publications of the Astronomical Society of the Pacific | In English | → Astronomy |
| PASPS | Publications of the Astronomical Society of the Pacific, Supplement | In English | → Astronomy |
| PAUTx | University of Texas Publications in Astronomy | In English | → Astronomy |
| PBB | Progress in Biochemistry and Biophysics | In English | → Biochemistry, biophysics |
| PBBC | Progress in Biophysics and Biophysical Chemistry | In English | → Biochemistry, biophysics |
| PBeiO | Publications of the Beijing Astronomical Observatory | In English | → Astronomy |
| PBioS | Proceedings: Biological Sciences | In English | → Biological sciences |
| PBMB | Progress in Biophysics and Molecular Biology | In English | → Biochemistry, biophysics |
| PBosO | Publications of the Bosscha Observatory Lembang | In English | → Astronomy |
| PBrn | Publications of the Astronomical Institute of the University of Borneo | In English | → Astronomy |
| PCARS | Publication of COMU Astrophysics Research Center | In English | → Astronomy |
| PCE | Physics and Chemistry of the Earth | In English | → Geophysics → Geochemistry |
| PCED | Physics and Chemistry of the Earth Delta | In English | → Geophysics → Geochemistry |
| PCESR | Physical, Chemical and Earth Sciences Research Reports | In English | → Physics → Chemistry → Earth sciences |
| PCHEI | Physics in Collision: High-Energy ee/ep/pp Interactions | In English | → Nuclear, atomic, and molecular physics |
| PCinO | Publications of the Cincinnati Observatory | In English | → Astronomy |
| PCL | Physics and Chemistry of Liquids | In English | → Physics → Chemistry |
| PCM | Physics and Chemistry of Minerals | In English | → Mineralogy |
| PCMLD | Physics and Chemistry of Materials with Low-Dimensional Structures | In English | → Physics → Chemistry |
| PCN | Physics and Contemporary Needs | In English | → Physics |
| PCooO | Publications of the Cook Observatory | In English | → Astronomy |
| PCPP | Plasma Chemistry and Plasma Processing | In English | → Plasma physics |
| PCS | Physics and Chemistry in Space | In English | → Astronomy |
| PCSE | Physical Chemistry: Science and Engineering | In English | → Physics |
| PCTM | Physikalisch-Chemische Trenn- und Messmethoden | In German | → Chemistry |
| PDAA | Publications of the Department of Astronomy, Austin, Texas | In English | → Astronomy |
| PDAO | Publications of the Dominion Astrophysical Observatory | In English | → Astronomy |
| PDAUC | Publications of the Department of Astronomy, University of Chile | In English | → Astronomy |
| PDDO | Publications of the David Dunlap Observatory | In English | → Astronomy |
| PDO | Publications of the Dominion Observatory Ottawa | In English | → Astronomy |
| PDreO | Publications of the Dresden Observatory | In English | → Astronomy |
| PEB | Pacific Economic Bulletin | In English | → Economics |
| PEEI | Physics and Evolution of the Earth's Interior | In English | → Geophysics |
| PEFPN | Physica Energiae Fortis et Physica Nuclearis | In Latin | → Nuclear, atomic, and molecular physics |
| PEMS | Proceedings of the Edinburgh Mathematical Society | In English | → Mathematics |
| PEPI | Physics of the Earth and Planetary Interiors | In English | → Geophysics → Planets and satellites |
| PerCo | Perkins Observatory Contributions | In English | → Astronomy |
| PF&CO | Publications of the Flower and Cook Astronomical Observatory | In English | → Astronomy |
| PFAO | Publications of the Flower Astronomical Observatory | In English | → Astronomy |
| PGLO | Publications of the Goethe Link Observatory | In English | → Astronomy |
| PGooO | Publications of the Goodsell Observatory | In English | → Astronomy |
| PhAco | Physical Acoustics | In English | → Acoustics |
| PhApp | Physics and its Applications | In English | → Physics |
| PhASp | Physics and Astrophysics from Spacelab | In English | → Astronomy → Spaceflight engineering, astronautics |
| PhB | Physics Bulletin | In English | → Physics |
| PhBio | Physical Biology | In English | → Biochemistry, biophysics |
| PhChE | Physics and Chemistry of Earth | In English | → Geophysics → Geochemistry |
| PhChH | PhysicoChemical Hydrodynamics | In English | → Physics |
| PhFl | Physics of Fluids | In English | → Physics |
| PhGeo | Physical Geography | In English | → Geography |
| PhiJR | Philips Journal Research | In English | → Electronics |
| PhiRR | Philips Research Reports | In English | → Electronics |
| PhiTR | Philips Technical Review | In English | → Electronics |
| PhJ | Philosophisches Jahrbuch | In German | → Philosophy, psychology |
| PhL | Physics Letters | In English | → Physics |
| PhLF | Physics Laser Fusion | In English | → Electricity, magnetism, electromagnetism → Nuclear, atomic, and molecular physics |
| PhLRv | Physics of Life Reviews | In English | → Physics → Biological sciences |
| PhMet | Physics of Metals | In English | → Metallurgy |
| PhP | Physics in Perspective | In English | → Physics |
| PhPl | Physics of Plasmas | In English | → Plasma physics |
| PhQE | Physics of Quantum Electronics | In English | → Nuclear, atomic, and molecular physics |
| PhR | Physics Reports | In English | → Physics |
| PhR | Philosophical Review | In English | → Philosophy, psychology |
| PhRv | Physical Review | In English | → Physics |
| PhRvL | Physical Review Letters | In English | → Physics |
| PhSS | Physics of the Solid State | In English | → Physics |
| PhT | Physics Today | In English | → Physics |
| PhTea | The Physics Teacher | In English | → Education → Physics |
| PhTec | Physics in Technology | In English | → Physics → Engineering, technology |
| PhuZ | Physik in unserer Zeit | In German | → Physics |
| PhyCP | Physiological Chemistry and Physics | In English | → Biochemistry, biophysics → Physiology |
| PhyEd | Physics Education | In English | → Physics |
| PhyEs | Physics Essays | In English | → Physics |
| PhylS | Physiologist Supplement | In English | → Physiology |
| PhyM | Physiological Measurement | In English | → Physiology |
| PhyN | Physics Notes | In English | → Physics |
| PhyNr | Physica Norvegica | In Latin | → Physics |
| PhyNY | Physics New York | In English | → Physics |
| PhyR | Physical Research | In English | → Physics |
| PhyS | Physica Scripta | In Latin | → Physics |
| PhyW | Physics World | In English | → Physics |
| PhyZ | Physikalische Zeitschrift | In German | → Physics |
| PIE | Publication In Engineering | In English | → Applied sciences, technology |
| PIGP | Proceedings of the Institute of General Physics | In English | → Physics |
| PIPSS | (The Journal of) Power Institutions in Post-Soviet Societies | In English | → Politics |
| PIstO | Publications of the Istanbul (University) Observatory | In English | → Astronomy |
| PJA | Proceeding of the Japan Academy | In English | , |
| PKAS | Publication of the Korean Astronomical Society | In English | → Astronomy |
| PKirO | Publications of the Kirkwood Observatory of Indiana University | In English | → Astronomy |
| PKM | Physik der Kondensiterten Materie | In German | → Physics of condensed matter |
| Pl&I | Plasmas and Ions | In English | → Plasma physics |
| PLAGL | Publications de l'Institut d'Astronomie et de Géophysique de Louvain | In French | → Astronomy |
| PlAst | Planetary Astronomy | In English | → Astronomy |
| PLawO | Publications of Laws Observatory | In English | → Astronomy |
| PLDS | Physics of Low-Dimensional Structures | In English | → Physics |
| PLicO | Publications of Lick Observatory | In English | → Astronomy |
| PlPh | Plasma Physics | In English | → 5539 |
| PlPhR | Plasma Physics Reports | In English | → Plasma physics |
| PlPo | Plasmas and Polymers | In English | → Plasma physics → Chemical technology |
| PlR | Planetary Report | In English | → Astronomy |
| PLTP | Progress in Low Temperature Physics | In English | → Physics |
| PMag | Philosophical Magazine | In English | → Philosophy, psychology |
| PMagL | Philosophical Magazine Letters | In English | → Philosophy, psychology |
| PManO | Publications of the Manila Observatory | In English | → Astronomy |
| PMatP | Progress in Mathematical Physics | In English | → Mathematics → Physics |
| PMB | Physics in Medicine and Biology | In English | → Physics → Biological sciences → Medicine |
| PMcCO | Publications of the Leander McCormick Observatory | In English | → Astronomy |
| PMetP | Progress in Metal Physics | In English | → Physics → Metallurgy |
| PMetR | Papers in Meteorological Research | In English | → Meteorology, climatology |
| PMG | Papers in Meteorology and Geophysics | In English | → Meteorology, climatology → Geophysics |
| PMHu | Periodica Mathematica Hungarica | In Latin | → Mathematics |
| PMM | Physics of Metals and Metallography | In English | → Metallurgy |
| PMPES | Proceedings: Mathematical, Physical and Engineering Sciences | In English | → Mathematics and natural sciences → Applied sciences, technology |
| PMRP | Progress in Medical Radiation Physics | In English | → Medicine |
| PMunO | Publications of the Munich Observatory | In English | → Astronomy |
| PNAOJ | Publications of the National Astronomical Observatory of Japan | In English | → Astronomy |
| PNAS | Proceedings of the National Academy of Sciences (www.pnas.org) | In English | → Mathematics and natural sciences |
| PNSBP | Proceedings of the National Society of Black Physicists | In English | |
| PNSci | Progress in Natural Science | In English | → Mathematics and natural sciences |
| PoA | Politique Africaine | In French | → Politics |
| POBeo | Publications de l'Observatoire Astronomique de Beograd | In French | → Astronomy |
| POBor | Publications de l'Observatoire de l'Université de Bordeaux | In French | → Astronomy |
| POClu | Publicatiile Observatorului Astronomic al Universităţii din Cluj | In Romanian | → Astronomy |
| PoCom | Polymer Composites | In English | → Chemical technology → Plastic industry |
| POHel | Publications of the Astronomical Observatory Helsinki | In English | → Astronomy |
| PolAt | Pollution Atmosphérique | In French | → Nature and society → Meteorology, climatology |
| PolPh | Polymer Physics | In English | → Chemistry → Chemical technology → Plastic industry |
| PolRe | National Institute Polar Research Memoirs | In English | → Earth sciences |
| POMic | Publications of Michigan Observatory | In English | → Astronomy |
| POMil | Pubblicazioni dell'Osservatorio Astronomico di Milano-Merate | In Italian | → Astronomy |
| POMin | Publications of the Astronomical Observatory University of Minnesota | In English | → Astronomy |
| POPad | Pubblicazioni dell'Osservatorio Astronomico di Padova | In Italian | → Astronomy |
| POPal | Pubblicazioni dell'Osservatorio Astronomico di Palermo | In Italian | → Astronomy |
| POPar | Publication de l'Observatoire de Paris | In French | → Astronomy |
| POrCo | Progress in Organic Coatings | In English | → 620 |
| POStr | Publication de l'Observatoire de Strasbourg | In French | → Astronomy |
| POTor | Pubblicazioni Varie Fuori Serie dell'Osservatorio Astronomico di Torino | In Italian | → Astronomy |
| POTou | Publications de l'Observatoire de Toulouse | In French | → Astronomy |
| POVRO | Publications of the Owens Valley Observatory | In English | → Astronomy |
| PPCAS | Publication of the Pomona College Astronomical Society | In English | → Astronomy |
| PPCF | Plasma Physics and Controlled Fusion (www.iop.org/EJ/journal/PPCF) | In English | → Plasma physics → Nuclear technology |
| PPcPp | Progress in Photochemistry and Photophysics | In English | → Electromagnetism |
| PPEE | Periodica Polytechnica Electrical Engineering | In English | → Electrical engineering |
| PPGeo | Progress in Physical Geography | In English | → Geography |
| PPHTS | Physical Properties of High Temperature Superconductors | In English | → Physics |
| PPME | Periodica Polytechnica Mechanical Engineering | In English | → Mechanical engineering |
| PPMtO | Publications of the Purple Mountain Observatory | In English | → Astronomy |
| PPN | Physics of Particles and Nuclei | In English | → Nuclear, atomic, and molecular physics |
| PPS | Proceedings of the Physical Society | In English | → Physics |
| PPSL | Proceedings of the Physical Society of London | In English | → Physics |
| PPTE | Periodica Polytechnica Transportation Engineering | In English | → Vehicle engineering → Transport and postal services |
| PPTEn | Polymer-Plastics Technology and Engineering | In English | → Chemical technology → Plastic industry |
| PQE | Progress in Quantum Electronics | In English | → Physics → Electronics |
| PrAA | Progress in Astronautics and Aeronautics | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| PrAeS | Progress in Aerospace Sciences | In English | → Astronomy → Aeronautics, aircraft → 6297 |
| PrAst | Practical Astronomy | In English | → Astronomy |
| PRCO | Publications of the Riverview College Observatory | In English | → Astronomy |
| PrECS | Progress in Energy and Combustion Science | In English | → Thermodynamics |
| PreR | Precambrian Research | In English | → Palaeontology |
| PrEx | Propellants and Explosives | In English | → Vehicle engineering |
| PrExP | Propellants and Explosives Pyrotechnics | In English | → Vehicle engineering |
| PrMS | Progress in Materials Science | In English | → 620 |
| PrOce | Progress in Oceanography | In English | → Marine research, oceanography |
| PROE | Publications of the Royal Observatory of Edinburgh | In English | → Astronomy |
| PrPh | Progress of Physics | In English | → Physics |
| PrPNP | Progress in Particle and Nuclear Physics | In English | → Nuclear, atomic, and molecular physics |
| PrSS | Progress In Surface Science | In English | |
| PrVP | Proceedings of Vibration Problems | In English | → Acoustics |
| PSAIL | Pubblicazioni della Stazione Astronomica Internazionale di Latitudine | In Italian | → Astronomy |
| PSCDS | Publication Spéciale du Centre de Données Stellaires | In French | → Astronomy |
| PSCEC | Physical Sciences - Series of the Commission of European Communities | In English | → Physics |