- Kavvanot (Cabala)1
- Kaʻbah (Mecca, Saudi Arabia)1
- Kemalpaşazade, 1468 or 1469-15341
- Khawāfī, Muḥammad ibn Muḥammad, 1356-1435. Awrād al-Zaynīyah1
- Kings and rulers--Genealogy1
- Kirchmair, Georg, 1481-15541
- Lafões, Pedro Henrique de Bragança, Duque de, 1718-17611
- Land titles--Registration and transfer1
- Languages, Secret1
- Latin drama (Tragedy)1
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- Latin poetry1
- Latin poetry, Medieval and modern1
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- Lebanon--Tripoli1
- Lefèvre d'Étaples, Jacques, -15361
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- Leo XI, Pope, 1535-16051