CSSA

CSSA may refer to:

Organizations

 * Cactus and Succulent Society of America
 * California State Student Association
 * Center for Service & Social Action, furthering the Jesuit mission of educating through service and advocacy
 * Chinese Students and Scholars Association, the official organization for overseas Chinese students
 * Connecticut State Soccer Association
 * Corporación Sudamericana de Servicios Aéreos, an airline merged into Aviación del Litoral Fluvial Argentino
 * Crop Science Society of America

Other uses

 * Star of South Africa, Commander (post-nominal letters)
 * Comprehensive Social Security Assistance, a welfare programme operated by Social Welfare Department of Hong Kong
 * Camp Stanley Storage Activity, operated by Camp Stanley, US