PPSI

AcronymDefinition
PPSIProject Preventie Seksuele Intimidatie (Dutch: Sexual Harassment Prevention Project; Utrecht, Netherlands)
PPSIPounds Per Square Inch
PPSIPetroleum Philatelic Society International
PPSIPaint Product Stewardship Initiative (est. 2005; Product Stewardship Institute)
PPSIPharmacists Planning Service, Inc. (health care; California)
PPSIPrinting Press Services International (UK)
PPSIPorous Polyethylene Sheet Implant