MPN

MPN may refer to:


 * Manufacturer part number, an identifier
 * Memory part number, an identifier for computer memory
 * Master promissory note, a wide-encompassing accounting contract
 * Metal-phenolic network, a supramolecular coordination structure consisting of metal ions and polyphenols
 * Microsoft Partner Network, a network of Microsoft partner companies and vendors
 * MintPress News, an American left-wing news website
 * Mobil Producing Nigeria, a Nigerian petroleum company
 * Most probable number, a method for estimating counts from positive/negative data
 * Movimiento Popular Neuquino, a provincial political party in the province of Neuquén, Argentina
 * Mutual Progressive Network, a 1970s US radio network
 * Myeloproliferative neoplasms, a family of blood cancers in which excess cells are produced
 * RAF Mount Pleasant (IATA airport code), a British military base in the Falkland Islands