Paul Kelpe (American, 1902–1985) Edward Kienholz (American, 1927–1994) Elaine de Kooning (American, 1918–1989) Willem de Kooning (American/Dutch, 1904–1997) Lee Krasner (American, 1908–1984) Walt Kuhn (American, 1877–1949) Yayoi Kusama (Japanese, born 1929) Gaston Lachaise (American/French, 1882–1935) Ibram Lassaw (American, 1913–2003) Jacob Lawrence (American, 1917–2000) Blanche Lazzell (American, 1878–1956) Hughie Lee-Smith (American, 1915–1999) Alfred Leslie (American, born 1927) Edmund Lewandowski (American, 1914–1998) Norman Lewis (American, 1909–1979)
Seymour Lipton (American, 1903–1986) Lee Lozano (American, 1930–1999) Martha Madigan (American, 1950–2022) Conrad Marca-Relli (American, 1913–2000) Boris Margo (American, 1902–1995) John Marin (American, 1870–1953) Reginald Marsh (American, 1898–1954) Roberto Matta (Chilean, 1911–2002) Jan Matulka (American/Czech, 1890–1972) Alfred Henry Maurer (American, 1868–1932) Joan Mitchell (American, 1925–1992) George L.K. Morris (American, 1905–1975) Adelaide Morris (1881–1974) Robert Motherwell (American, 1915–1991) Archibald John Motley Jr. (American, 1891–1980)
