SWE may refer to:
- Sensor Web Enablement, an Open Geospatial Consortium framework for defining a Sensor Web
- Shallow water equations, a set of equations that describe flow below a pressure surface
- Snow water equivalent
- Social Work England, the regulator for social workers in England
- Society of Women Engineers, a non-profit engineering organization
- Society of Wood Engravers, a British printmakers' group
- Software engineer
- Something Witty Entertainment, creators of animated web series Sword Art Online Abridged
- Staebler–Wronski effect, light-induced changes in the properties of silicon
- Sweden, the country's ISO 3166-1 alpha-3-code
- Swedish language, the language's ISO 639-2 and ISO 639-3 language code