SWI may refer to:
PlacesEdit
- Switzerland (this is not the ISO 3166-1 code, which is CHE)
- Swindon railway station (National Rail code SWI), serving Swindon, Wiltshire, United Kingdom
Science and technologyEdit
- SWI-Prolog, a free implementation of the programming language Prolog
- Susceptibility weighted imaging, in magnetic resonance imaging (MRI) used in medical contexts
- Software interrupt, an interrupt routine in a computer operating system
- SWI, an assembler mnemonic to perform a software interrupt on the ARM microprocessor family
- Szilagyi Waterspout Index
Other usesEdit
- Swissinfo, a service of the Swiss Broadcasting Corporation
- Switzerland, UNDP country code
- Structured Word Inquiry, a pedagogical technique involving the scientific investigation of the spelling of words
- Scottish Women's Institutes, a registered charity in Scotland