English abbreviations from pie to pij
- PIE(pyrotechnically initiated explosive)
- PIEAS(Pakistan Institute of Engineering & Advanced Sciences)
- PIER(Public Interest Energy Research (CEC))
- PIF(Partners in Flight)
- PIFA(Pacific Islander Festival Association (San Diego))
- PIFC(Partners In Foster Care)
- PIFS(Point Inter- Frame Space)
- PIFUA(Powerplant and Industrial Fuel Use Act of 1978)
- PIG(Pipeline Inspection Gauge)
- PIGS(Paired Iowans Going Somewhere)
- PIGS (also PIIGS or PIIGGS)(Portugal, Italy, Greece, Spain; PIIGS if including Ireland; PIIGGS if including the United Kingdom (Great Britain))
- PIH(Pocatello Regional Airport)
- PIHA(Professional Inline Hockey Association)
- PIHCP(Pacific Island Health Care Program)
- PIHMS(Pacific International Hotel Management School)
- PIHRA(Professionals In Human Resources Association)
- PII(Program Image Inspector)
- PIII(Plasma Immersion Ion Implantation)
- PIJ(Palestinian Islamic Jihad)
