| Subclass K | Law in general. Comparative and uniform law. Jurisprudence |
| Subclass KB | Religious law in general. Comparative religious law. Jurisprudence |
| Subclass KBM | Jewish law |
| Subclass KBP | Islamic law |
| Subclass KBR | History of canon law |
| Subclass KBU | Law of the Roman Catholic Church. The Holy See |
| Subclasses KD-KDK | United Kingdom and Ireland |
| Subclass KDZ | America. North America |
| Subclass KE | Canada |
| Subclass KF | United States |
| Subclass KG | Latin America - Mexico and Central America - West Indies. Caribbean area |
| Subclass KH | South America |
| Subclasses KJ-KKZ | Europe |
| Subclasses KL-KWX | Asia and Eurasia, Africa, Pacific Area, and Antarctica |
| Subclass KZ | Law of nations |
https://www.loc.gov/aba/cataloging/classification/lcco/lcco_k.pdf