MPP or M.P.P. may refer to:
- Marginal physical product
- Marijuana Policy Project, organization in the United States
- Massively parallel processing, in parallel computing
- Goodyear MPP, an early implementation of massively parallel processing
- Master Production Planning
- Master of Public Policy, an academic degree
- Maximum Power Point (see Maximum power point tracker)
- Member of Provincial Parliament, an elected member of the Legislative Assembly of Ontario, Canada
- Merriweather Post Pavilion in Columbia, Maryland
- Metroid Prime Pinball, a pinball video game for the Nintendo DS
- Micro perforated plate, a type of sound absorber
- Micro Precision Products, a British camera manufacturer
- Mobile Positioning Protocol
- Modus ponens, a principle in propositional logic
- Molded Paper Pulp, a packaging and padding material made from wet paper fiber, formed and dried into rigid boxes and shapes.
- Molypermalloy Powder, a low-loss alternative to ferrite toroidal Inductor cores, typically consisting of 79% nickel, 17% iron and 4% molybdenum alloy powder
- mpp, Microsoft Project Plan file format
- MPP+, 1-methyl-4-phenylpyridine, a toxic metabolite of MPTP causing symptoms of Parkinson's disease