- Keetman, Gunild3
- Keith, Herman1
- Keith, John P. (John Pirie), 1921-20001
- Kelen, Leslie G., 1949-1
- Kelley, Kevin Ervin, 1964-1
- Kellner, Douglas, 1943-1
- Kennedy, Roger G.1
- Kiley, Robert R., 1935-1
- Kilgallen, Dorothy1
- Killian, Tom1
- King, Anthony D.1
- Kirkland, J. Michael, 1943-1
- Klein, Norman M., 1945-1
- Kliment, Robert M., 1933-20171
- Knauer, Lisa Maya, 1956-1
- Kolbowski, Silvia2
- Kollmar, Dick1
- Kolodny, Robert1
- Komonen, Markku1
- Koolhaas, Rem2
- Kovel, Joel, 1936-20181
- Krinsky, Carol Herselle1
- Kuran, Aptullah1
- Kurokawa, Kish?, 1934-20071
- Kushner, James A.2
- Kwok, R. Yin-Wang1
- Lacy, Bill1
- Lambert, Carol1
- Landau, Sarah Bradford, 1935-20231
- Lane, Barbara Miller1
- Lane, Lisa (Documentary filmmaker)1
- Lang, John Franklin, 1943-2
- Lang, Roger P.1
- Lansipuro, Yrjo1
- Laozi1
- Lapidus, Morris1
- Laughton, Charles, 1899-19621
- Leach, Neil2
- Led Zeppelin (Musical group)3
- Legatt, Jerry1
- Leggatt, Jerry2
- Lerner, Ruth2
- Levine, Neil, 1941-2
- Levitt, Jacqueline1
- Levy, Matthys1
- Lewis, Orme, 1903-19901
- Lewis, Sam1
- Liang, Yen1
- Libeskind, Daniel, 1946-4
- Lietaer, Bernard A.1
- Lincoln Income Life Insurance Company1
- Linley, Thomas, 1756-17781
- Lipman, Jonathan, 1953-2
- Lippard, Lucy R.1
- Lipponen, Jyri1
- Lipstadt, Hélène2
- Littenberg, Barbara1
- Littmann, William1
- Livingston, Frank2
- Llewelyn-Davies, Richard, Baron, 1912-1