Wikipedia
XSI
XSI may refer to:
- Softimage XSI, a high-end three-dimensional (3D) graphics application
- South Indian Lake Airport, the IATA code for the airport in Canada
- Canon EOS 450D, a DSLR camera from Canon
- X/Open System Interfaces Extension, a supplementary specification to the Single UNIX Specification
- A conventional XML namespace prefix for XML Schema instance information
- Broadsoft Xtended Services Interface, a set of APIs for integrating BroadWorks functions with Internet services
- XS_International is an IT firm that provides networking solutions.