Encyclopedias, Almanacs, Transcripts, and Maps
- Kirschbaum v. Walling 316 U.S. 517 (1942)
- Klopfer v. North Carolina 386 U.S. 213 (1967)
- Knight Company, E. C., UNITED STATES v. 156 U.S. 1 (1895)
- Knox, Philander C. (1853–1921)
- Kolender v. Lawson 461 U.S. 352 (1983)
- Konigsberg v. State Bar 353 U.S. 252 (1957) 366 U.S. 36 (1961)
- Kosovo, NATO Intervention
- Kovacs v. Cooper 336 U.S. 77 (1949)
- Kramer v. Union Free School District No. 15 395 U.S. 621 (1969)
- Kumpulan Mujahidin Malaysia (KMM)
- Kunz v. New York 340 U.S. 290 (1951)
- Kurdistan Workers' Party (PKK)
- Kurland, Philip B. (1921–1996)
- Kuwait Oil Fires, Persian Gulf War
- La Follette, Robert M. (1855–1925)
- Labor and the Antitrust Laws
- Labor and the Constitution
- Labor and the Constitution (Update)
- Laden, Osama Bin
- Ladue (City of) v. Gilleo 512 U.S. 43 (1994)