HPSS

HPSS may refer to:


 * High Performance Storage System
 * High performing specialist school, type of specialist school in the United Kingdom
 * ATI HPSS (Acoustic Technology Inc. High-Power Speaker Station "Soundblaster"), an outdoor speaker system used as a warning siren
 * Hilal Public School System, Green Crescent Trust, Sindh, Pakistan
 * Health and Population Sector Strategy for health in Bangladesh by its government
 * Croatian Peoples' Peasant Party (HPSS), predecessor of the Croatian Peasant Party