A
- Morris N. Abrams (1919–1975) educator
- Bryan Adams (born 1963) Louisiana state representative
- Jamar Adcock (1917–1991) politician and banker
- Trace Adkins (born 1962) singer/songwriter
- Robert Adley (born 1947) politician from Bossier Parish
- John Alario (born 1943) politician
- Kermit Alexander (born 1941) NFL professional football, NFL Players Association President 1971-72
- Bret Allain (born c. 1958) politician
- Calhoun Allen (1921–1991) mayor of Shreveport, 1970–1978
- Ray R. Allen (1920–2010) secretary-treasurer and finance director in Alexandria (1963–1979)
- William Alston (1921–2009) philosopher
- Jacques Amans (1801–1888) neoclassical portrait artist
- Jody Amedee (born c. 1968) politician
- Cliff Ammons (1918–1981) state representative known as "the father of Toledo Bend Reservoir"
- Andy Anders (born 1956) state representative from Concordia Parish
- David Andrews (born 1952) actor, Gordon Cresswell on JAG
- Scott Angelle (born 1961) politician
- Ernest Angelo (born 1934) Texas oilman and politician; reared in Louisiana
- Robert Angers (1919–1988) journalist, founded Acadiana Profile magazine
- Phil Anselmo (born 1968) singer/songwriter, Pantera
- Conrad Appel (born 1951) state senator from Jefferson Parish
- Louis Armstrong (1901–1971) musician & entertainer
- Tommy G. Armstrong (born 1941) politician
- Evelyn Ashford (born 1957) Olympic champion
- Elizabeth Ashley (born 1939) actress, Evening Shade
- Nnamdi Asomugha (born 1981) cornerback for the Philadelphia Eagles
- James Benjamin Aswell (1869–1931) US Representative and college president
- Al Ater (born 1953) politician
- Douglas F. Attaway (1910–1994) newspaper publisher and television station owner in Shreveport; advocate of Red River navigation
- D. J. Augustin (born 1987) point guard for the Charlotte Bobcats
- The Axeman (fl. 1918) serial killer
- Clarence C. "Taddy" Aycock (1915–1987), speaker of the Louisiana House of Representatives (1952–1956) and lieutenant governor (1960–1972)
- H. Welborn Ayres (1900–1985) judge
Read more about this topic: List Of People From Louisiana