The acronym XPG can refer to the following: xpg, ISO 639-3 code for the Phrygian language XPG, IATA airport code for railway station Gare du Nord, Paris XPG ("Xtreme Performance Gear"), the gaming hardware and accessories product line of the Taiwanese memory and storage manufacturer ADATA X/Open Portability Guide, which specifies the requirements for any system which is intended to be a Unix system, and a predecessor to the POSIX standard Xeroderma pigmentosum, complementation group G, a genetic disorder and a possible source of skin tumors an endonuclease involved in nucleotide excision repair