MPO

MPO may refer to:

Science and technology

 * Myeloperoxidase, a peroxidase enzyme most abundantly present in neutrophil granulocytes
 * .mpo (Multi Picture Object file extension), a 3D computer graphics image file format
 * Medial preoptic area, a portion of the preoptic area of the hypothalamus
 * Multi-fiber Push-On, a type of optical fiber connector
 * Multiset path ordering, a well-ordering in term rewriting (computer science)
 * Matrix Product Operator, a type of tensor network central to the Density Matrix Renormalisation Group numerical technique

Astronomy

 * Mercury Planetary Orbiter, one component of the BepiColombo mission to Mercury
 * Minor Planet Circulars Orbit Supplement, an astronomical publication from the Minor Planet Center
 * Minor Planet Observer, an astronomical computer program partially based on the work of Mikko Kaasalainen

Organizations

 * Macedonian Patriotic Organization, a United States and Canadian organization supporting Macedonians
 * Metropolitan planning organization, a type of transportation policy-making organization in the United States
 * Malaysian Philharmonic Orchestra, a Malaysian orchestra based in Kuala Lumpur
 * Managerial and Professional Officers, former British trade union
 * Management and Planning Organization of Iran, a now-dissolved organization previously responsible for Iran's budget

Other uses

 * Metal Gear Solid: Portable Ops, a 2006 video game released for the PlayStation Portable
 * Military Post Office, a key part of a military mail system
 * Pocono Mountains Municipal Airport (IATA code), Pennsylvania, US
 * Most Productive Overs method, in cricket
 * Metropolitan planning organization, a federally mandated and funded transportation policy-making organization in the US
 * Master of Prosthetics and Orthotics