SLSA

SLSA can refer to:


 * The Saint Lucia Scout Association, the national Scouting organization of Saint Lucia
 * Society for Literature, Science, and the Arts
 * Sodium lauryl sulfoacetate, an organic compound used as a surfactant
 * Special light-sport aircraft, an American category of factory-built two seat aircraft
 * State Library of South Australia
 * Surf Life Saving Australia, the peak surf lifesaving organisation in Australia