CPI
VPI is an abbreviation for:
- Velopharyngeal insufficiency, see Velopharyngeal occlusion
- Association of Freight Car Owners in Germany
- Consumer price index for Germany
- Virtual Path Identifier , see Asynchronous Transfer Mode #Why virtual connections?
- Volcano Population Index , see Volcano Explosivity Index #Other classification methods for volcanic eruptions
- various associations called Association of Testing Engineers
