- Nahj al-balāghah (Sharīf al-Raḍī, Muḥammad ibn al-Ḥusayn)2
- New York (State)--New York2
- Nāṣir al-Dīn Shāh, Shah of Iran, 1831-18962
- Persian language--Pronunciation2
- Persian language--Rhyme2
- Philosophy, Ancient2
- Philosophy, Arab2
- Physics2
- Plants2
- Poems (ʻAlī ibn Abī Ṭālib, Caliph)2
- Professions2
- Prophecy--Islam2
- Prophets2
- Proverbs, Arabic2
- Pseudo-Ptolemy. Centiloquium2
- Qawāʻid al-aḥkām fī maʻrifat al-ḥalāl wa-al-ḥarām (Ibn al-Muṭahhar al-Ḥillī, al-Ḥasan ibn Yūsuf)2
- Quotations2
- Qurʼan. Juzʼ ʻAmma2
- Qūshjī, ʻAlī ibn Muḥammad, d. 1474 or 5. Risālah dar hayʼat2
- Religious life--Hinduism2