XNS or xns may refer to:

Computing

  • Xerox Network Systems, an early computer networking protocol suite
  • Extensible Name Service, an XML-based digital identity architecture

Other uses

  • Kanashi language (ISO 639:xns), a Sino-Tibetan language
  • Navtech System Support (IATA code: XNS), in the List of airline codes
  • Christians (XNS), in the List of acronyms: X<!--(Christians fails WP:DABACRO)-->