HSA

HSA may refer to:

==Organizations== Hellenic Space Agency, Greece Haiku Society of America Harvard Student Agencies Hawker Siddeley Aviation Hayel Saeed Anam Group, a Yemeni conglomerate Health Sciences Authority, Singapore Health and Safety Authority, Ireland Hmar Students' Association, in Imphal, Manipur, India HSA Bank, US Hunt Saboteurs Association, UK Hospital Saving Association, UK, now Simplyhealth