IHSA


AcronymDefinition
IHSAIllinois High School Association
IHSAIntercollegiate Horse Show Association
IHSAIllinois Head Start Association (est. 1978)
IHSAInstitut Hukum Sumberdaya Alam (Indonesian: Natural Resources Law Institute; Jakarta, Indonesia)
IHSAIowa Head Start Association (Lamoni, IA)
IHSAIndustrial Hygiene Student Association (industrial health education and research student group; various universities)