- Juana, of Austria, Princess of Portugal, 1535-15731
- Justa, Saint, -approximately 2871
- Justice, Administration of1
- Knights of Malta1
- Knowledge, Theory of1
- Land titles--Registration and transfer1
- Latin language1
- Lawyers1
- Learning and scholarship1
- Legacies1
- Legal instruments1
- Legaspi, Margarita de1
- Leocadia, Saint, -3031
- Liturgics1
- Local officials and employees--Salaries, etc.1
- Logic1
- Lorraine, Nicolas-François, duc de, 1609-16701
- Lucayan Indians1
- López de Legaspi, Miguel, -15721
- Macaronic poetry1