Author
- Jean de Meun2
- John Burgh2
- John Felton2
- John Gower2
- John Montgomery2
- John of Wales2
- Jordan von Quedlinburg2
- Julianus Pomerius2
- Julius II2
- Justin2
- Kamalākara Bhaṭṭa2
- Kamalākarabhaṭṭa2
- Keśavācārya2
- Kingdom of France2
- Konrad III. von Soltau2
- Konrad von Brundelsheim2
- Kātyāyana2
- Kāśīnātha Bhaṭṭa Bhaḍa2
- Laurent d'Orleans2
- Leo I2