L
- J
- Janie Verret Luster
- Jean and Pierre Laffite
- Jean-Hyacinthe Laclotte
- Jean-Michel de Lépinay
- Jerry Lee Lewis
- Jimmy Perrin
- John Law
- John Lomax
- John T. Ludeling
- Jules Lion
- L
- La Salle Expeditions
- Lagniappe
- Lakefront Airport
- Late Twentieth-Century Louisiana
- Laura Plantation
- Laurel Valley Plantation
- Layton Castle
- Huddie “Lead Belly” Ledbetter
- LeBeau Plantation
- Legalized Gambling
- LGBTQ+ Rights Movement in Louisiana
- L’Hermitage Plantation
- Lighthouses
- Lil Wayne
- Linwood Plantation
- Little Walter
- Live Oaks Plantation
- Longism
- Lory Lockwood
- Los Adaes
- Louisiana Catahoula Leopard Dog
- Louisiana Hayride
- Louisiana Lottery
- Louisiana Philharmonic Orchestra
- Louisiana Purchase and Territorial Period
- Louisiana State Penitentiary at Angola
- Louisiana State University Rural Life Museum
- Loujon Press
- Louviere + Vanessa
- LSU Campus Indian Mounds
- Lucky Dogs
- Lynching
