- Iran--Shīrāz10
- Iran--Simnān1
- Iran--Tabrīz8
- Iran--Tehran10
- Iran--Urūmīyah1
- Iran--Ārān va Bīdgul1
- Iraq5
- Iraq--Baghdad8
- Iraq--Erbil1
- Iraq--Karbalāʼ3
- Iraq--Kāẓimīyah1
- Iraq--Mosul6
- Iraq--Najaf1
- Irshād al-adhhān ilá aḥkām al-īmān (Ibn al-Muṭahhar al-Ḥillī, al-Ḥasan ibn Yūsuf)5
- Isbījābī, Aḥmad ibn Manṣūr, -approximately 1087. Sharḥ al-Mukhtaṣar fī al-fiqh1
- Isfarāyīnī, Muḥammad ibn Muḥammad, -1285. Ḍawʼ al-Miṣbāḥ5
- Isfarāyīnī, Muḥammad ibn Muḥammad, d. 1285. Lubb al-albāb fī ʻilm al-iʻrāb3
- Isfarāyīnī, Muḥammad ibn Muḥammad, d. 1285. Lubāb al-iʻrāb2
- Isfarāyīnī, Muḥammad ibn Muḥammad, d. 1285. Ḍawʼ ʻalá al-Miṣbāḥ4
- Ishrāqīyah3