| physics | física |
| Physics in the Classical Limit | Física clásica |
| Physics Nobel Prize awarded for insights into light | Tres físicos ganan el Premio Nobel de Física por sus trabajos en óptica |
| Physiocrats | Fisiocracia |
| physiognomy | fisonomía |
| physiological | fisiológico |
| physiologist | fisiólogo |
| Physiologus | Physiologus |
| physiology | funciones vitales |
| physiotherapist | fisioterapeuta |
| physiotherapy | fisioterapia |
| physique | constitución |
| Physocarpus | Physocarpus |
| Phytelephas | Phytelephas |
| Phytelephas aequatorialis | Phytelephas aequatorialis |
| Phyteuma | Rapunzel |
| Phytochemistry | Fitoquímico |
| Phytolaccaceae | Phytolaccaceae |
| Phytolith | Fitolito |
| phytology | botánica |
| phytomass | fitomasa |
| phytopathology | patología vegetal |
| Phytophthora infestans | Phytophthora infestans |
| phytoplankton | fitoplancton |
| phytosanitary treatment | tratamiento fitosanitario |
| phytosociology | fitosociología |
| phytotoxicity | fitotoxicidad |
| Phèdre | Fedra de Racine |
| Phénix | Fénix |
| Phở | Phở |
| pi | pi |
| Pi Day | Día de π |
| Piacenza | Piacenza |
| Piadina | Piadina |
| Piaggio Ape | Piaggio Ape |
| Pianezzo | Pianezzo |
| pianissimo | pianísimo |
| pianist | pianista |
| Piankh | Pianj |
| piano | piano |
| piano accordion | acordeón |
| Piano blues | Piano blues |
| Piano key | Clave |
| Piano nobile | Piano nobile |
| pianoforte | piano |
| Pianosa | Pianosa |
| Piarists | Escuelas Pías |
| piaster | piastra |
| Piatnitzkysaurus | Piatnitzkysaurus |
| Piauí | Piauí |
| Piave cheese | Piave |
| Piave River | Piave |
| Piazza Barberini | Plaza Barberini |
| Piazza Colonna | Plaza Colonna |
| Piazza del Popolo | Piazza del Popolo |
| Piazza della Signoria | Plaza de la Señoría |
| Piazza di Spagna | Plaza de España |
| Piazza Navona | Plaza Navona |
| Piazza San Marco | Plaza de San Marcos |
| Piazzogna | Piazzogna |
| Pic du Balaïtous | Balaitus |
| PIC microcontroller | Microcontrolador PIC |
| pica | cícero |
| picador | picador |
| Picana | Picana eléctrica |
| Picander | Christian Friedrich Henrici |
| Picanya | Picaña |
| Picard-Lindelöf theorem | Teorema de Picard-Lindelöf |
| Picardie | Picardía |
| Picardy | Picardía |
| Picardy third | Tercera de Picardia |
| picaresque | picaresco |
| Picaresque novel | Novela picaresca |
| Picasa | Picasa |
| Picassent | Picasent |
| Picasso museums | Museo Picasso Málaga |
| Picathartes | Picathartes |
| Piccadilly Circus | Piccadilly Circus |
| Piccadilly Circus tube station | Piccadilly Circus |
| Piccadilly line | Piccadilly Line |
| piccalilli | picadillo de verduras y especias |
