- Petrucci, Pandolfo, 1452-15122
- Philip IV, King of Spain, 1605-16652
- Physics2
- Piccolomini della Triana, Silvio, 1878-19622
- Poets, Turkish2
- Political science2
- Power of attorney2
- Prayer--Judaism2
- Procedure (Law)2
- Property2
- Prophecy--Islam2
- Prophetic office of the Prophet Muhammad2
- Protestants2
- Qazwīnī, Jalāl al-Dīn Muḥammad ibn ʻAbd al-Raḥmān, 1267 or 8-1338. Īḍāḥ li-Talkhīṣ al-Miftāḥ2
- Quadrants (Astronomical instruments)2
- Qurʼan. Sūrat al-Fātiḥah2
- Record-keeping works2
- Relations2
- Riddles, Persian2
- Rome (Empire)2