- Janārdana Tāhmaṇakara15
- Janārdanakoṇḍadeva Gāḍagila1
- Jarmī, Yūnus ibn ʻAlī, active 18th century1
- Jatārakṛṣṇa Bhaṭṭa1
- Jayata, son of Valabhadra1
- Jazāʼirī, Muḥammad Nūr al-Dīn, active 19th century1
- Jazīrī, Muḥammad ibn Muḥammad, active 18th century1
- Jazīrī, Yūsuf ibn ʻAbd Allāh, active 18th century1
- Jaʻfar ibn Muḥammad Bashrawānī1
- Jaʻfar ibn Muḥammad Iṣfahānī1
- Jaʻfar ibn Muṣṭafá Nakdahʹwī1
- Jaʻfar ibn Ḥasan Barzanjī1
- Jaʻfarī, Muḥammad ibn Muḥammad, active 19th century1
- Jaṃtalīrāma Bhaṭṭa1
- Jehan Engremer1
- Jeronimus de Sandei1
- Jibrāyil ibn Mikhāyil Ḥamawī1
- Joannes Suardus1
- Joannes de Caudalonga2
- Johann Epping1