P
- Pelagius, (c. 360-c. 435)
- Peter the Iberian, (411-491)
- Peter of Pisa (744-799)
- Joannes Philoponus, (early 6th century)
- Philostratus, (2nd-3rd centuries)
- Photios I of Constantinople (c. 810 - c. 893)78
- Plotinus, (died 270)
- Mestrius Plutarch of Chaeronia, (c. 45-c. 120)
- Porphyry, (c. 232-c. 304)
- Prabhākara, (circa 7th century)
- Proclus, (412-487)
- Prudentius of Troyes (died 861)
- Pseudo-Dionysius the Areopagite, (5th century)
- Ptolemy, (c. 85-c. 165)
Read more about this topic: List Of Philosophers Born In The 1st Through 10th Centuries