Author
- Ikhtiyār al-Dīn ibn Ghiyāth al-Dīn2
- Ildibrandinus1
- Ilyās ibn ʻAbbās Mullā Shaykh al-Kurdī1
- Imam Ar-Rafi'i4
- Imam Birgivi22
- Imami Heravi1
- Imbert Feutrier1
- Immanuel Bonfils3
- Immanuel Frances2
- Immanuel Tremellius1
- Imām al-Dīn ibn Luṭf Allāh Lāhūrī1
- Imāmzādah, Aḥmad ibn ʻUthmān, 18th/19th cent1
- Inayat Khan1
- Inayet Efendi1
- Innocent III7
- Innocent IV5
- Innocent V2
- Innocent VIII1
- Innocent XI1
- Inquisition Sicily)1