- Kirchmair, Georg, 1481-15541
- Knights of Malta1
- Knowledge, Theory of1
- Kāfiyah (Ibn al-Ḥājib, ʻUthmān ibn ʻUmar)1
- Land tenure1
- Land titles--Registration and transfer1
- Language and languages1
- Latin America1
- Latin drama (Comedy)1
- Latin drama (Tragedy)1
- Latin letters, Medieval and modern1
- Lawyers1
- Lefèvre d'Étaples, Jacques, -15361
- Legal documents1
- Leicester, Robert Dudley, Earl of, 1532?-15881
- Leo XI, Pope, 1535-16051
- Letter writing1
- Letter writing, German1
- Limp bindings1
- Lion hunting1