XPP

XPP may refer to:

Poplar River Airport, the IATA code for the airport in Canada
XML Professional Publisher, a standards-based, high performance, content formatting and publishing application
XML Pull Parsing, a method of parsing an XML document, StAX parsers are an implementation of a pull parser.
eXtreme Processing Platform, a processor architecture
XPP-AUT, a tool for solving stochastic, differential, and difference equations, amongst others.
X++, the programming language behind Microsoft Dynamics AX