XAP

XAP might refer to:


 * XAP processor, a CPU architecture for computers, developed by Cambridge Consultants since 1994
 * XAP (Extensible Authoring Publishing), an old name for Extensible Metadata Platform (XMP)
 * XAP (file format), container format for mobile apps and Silverlight web apps
 * XAP, The IATA airport code for Chapecó Airport
 * xAP Home Automation protocol
 * XAP, The ICAO Code for Midway Connection, operated by Fischer Brothers Aviation of the United States