VPI may refer to:

• Vapor phase infiltration, a technique
• Velopharyngeal insufficiency, a medical disorder
• Verilog Procedural Interface, a programming interface
• Virtual path identifier, in computer networking
• Virtual protocol interconnect, a feature of Mellanox Technologies

• Vertical Politics Institute, a conservative political action committee
• Vietnam Petroleum Institute
• Virginia Polytechnic Institute and State University, official name of Virginia Tech, a US university
• Visegrad Patent Institute, a patent organization created by the four Visegrad countries
• VPI Industries, a manufacturer of phonographs

• Vocational Preference Inventory, by John L. Holland

This disambiguation page lists articles associated with the title VPI.
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