| Acronym | Definition |
|---|
| CPI | Consumer Price Index |
| CPI | Continuous Process Improvement |
| CPI | Central Pennsylvania Institute of Science and Technology (Pleasant Gap, Pennsylvania) |
| CPI | Certificat Provisoire d'Immatriculation (French: Provisional Certificate of Registration) |
| CPI | Child Protective Investigator |
| CPI | Civilian Personnel Instructions |
| CPI | Civilian Personnel Integration |
| CPI | Code de la Propriété Intellectuelle (French: Intellectual Property Code) |
| CPI | Command Performance Indicator |
| CPI | Command Performance Inspection (US Navy) |
| CPI | Communist Party of India (political party) |
| CPI | Community Policing Initiative (various locations) |
| CPI | Community Progress Initiative (various locations) |
| CPI | Consumer Protection Initiative (various locations) |
| CPI | Continuous Public Involvement (various organizations) |
| CPI | Contractor Performance Inspection |
| CPI | Corruption Perceptions Index (US trade) |
| CPI | Corte Penal Internacional (Spanish: International Criminal Court; Netherlands) |
| CPI | Cost Performance Index |
| CPI | Counter-Proliferation Initiative |
| CPI | Cours Pénale Internationale (French: International Criminal Court) |
| CPI | Criminal Procedure and Investigations (law; UK) |
| CPI | Critical Path Initiative (various organizations) |
| CPI | Critical Performance Indicator |
| CPI | Critical Program Information (US DoD) |
| CPI | Cross Pointer Indicator (NASA) |
| CPI | Customer Provided Items |