K
- Ed Karst (1931–1992), mayor of Alexandria (1969–1973), gubernatorial candidate, 1991
- Kay Katz (born 1940), state representative from Ouachita Parish and Republican National Committeewoman from Louisiana
- Jack Keahey (1935–2007), president of Tensas Basin Levee District
- Kelly Keeling (born 1966), Houma, Louisiana, Singer, Songwriter, Recording Artist
- J.E. Keeny (1860–1939), educator
- Bill P. Keith (born 1934), author in Longview, Texas, and former member of the Louisiana State Senate
- Perry P. Keith (1847-1935), state representative; co-founder of Keithville in Caddo Parish
- William P. Kellogg (1830–1918) Congressman, Governor and United States Senator
- Donald G. Kelly (born 1941), state senator from Natchitoches, 1976–1996
- Bolivar E. Kemp (1871–1933), U.S. representative from 1925 to 1933
- Bolivar Edwards Kemp, Jr. (1904–1965), Louisiana attorney general from 1948 to 1952
- Donald Ray Kennard (1936–2011), state representative from Baton Rouge, 1976–2008
- John Neely Kennedy (born 1951) current Louisiana State Treasurer
- Edward Kennon (born 1938) businessman; politician
- Robert F. Kennon (1902–1988) Governor of Louisiana from 1952 to 1956
- Doug Kershaw (born 1936) musician, singer
- Sammy Kershaw (born 1958) musician, singer, candidate for lieutenant governor
- Ernie K-Doe (1936–2001) singer, "Emperor of the Universe"
- DJ Khaled (born 1975), record producer, radio personality, DJ, record label executive
- Nat G. Kiefer (1939–1985) state senator from New Orleans
- Arnold R. Kilpatrick (1920–2005) educator
- K.D. Kilpatrick (1928–2010) state senator from Ruston
- Catherine D. Kimball (born 1945) chief justice of the Louisiana Supreme Court
- Harold R. "Hal" King (1945–2010) novelist
- Earl King (1934–2003) musician
- Claude Kirkpatrick (1917–1997) politician and businessman
- Edith Killgore Kirkpatrick (born 1918) music educator; former member of Louisiana Board of Regents
- Chuck Kleckley (born 1960) state representative
- Mark Klein (born 1993) singer
- Jesse Monroe Knowles (1919–2006) politician and survivor of Bataan Death March
- L.D. Knox (1929–2009) politician
- Allison Kolb (1915–1973) politician
- Robert Kostelka (born 1933) district attorney, judge, and state senator from Monroe
- Suzanne Mayfield Krieger (born 1953) politician
- Dan Kyle (born 1937) politician
- John S. Kyser (1900–1975) educator
Read more about this topic: List Of People From Louisiana