Author
- Josef ibn Tabul1
- Joseph Nasi1
- Juan Gallo1
- Juan Martínez Silíceo1
- Juan Páez de Castro1
- Juan de Foxá1
- Juan de Mena1
- Juana I of Castile1
- Justinian I1
- Kamal Khujandi1
- Kamāl al-Dīn ibn Āsāyish Shirwānī1
- Kara Fazlî1
- Keśavamiśra1
- Khalīl ibn Shāhīn1
- Khaqani1
- Kingdom of Bohemia1
- Kingdom of France1
- Kirmānī, Muḥammad ibn ʻAlī1
- Kınalızâde Hasan Çelebi1
- Lapo da Castiglionchio1