TPI

TPI as an acronym or abbreviation can stand for:

• The Philanthropic Initiative, an organization that helps donors have a greater positive impact with their philanthropy
• Televisi Pendidikan Indonesia
• Truss Plate Institute, an organization of metal plate suppliers supporting the wood truss industry
• Tok Pisin, a language of Papua New Guinea
• Turns per inch, an obsolete unit of measurement
• True Performance Index, a "measurement" for AMD processors
• Threads per inch
• Test Process Improvement
• Tracks per inch
• Two Person Integrity, Used when handling all Top Secret material
• Teeth per inch in, used in specifications for saw blades
• Tuned Port Injection, a performance-oriented type of fuel injection
• TPI, an Indonesian TV channel
• The Ted Petty Invitational, an annual wrestling tournament held by IWA:Mid-South to honor the late Ted Petty (Rocco Rock)
• Twists per inch, measurement used in the yarn industry as well as in Twisted Pair wires
• Technology Partners Inc, a sourcing advisory firm www.tpi.net
• Triosephosphate isomerase, an enzyme that catalyzes the reversible interconversion of triose phosphates isomers dihydroxyacetone phosphate and D-glyceraldehyde 3-phosphate.