ISW
ISW is abbreviation for:
- Inn-Salzach-Welle , a local radio for the southeast Bavarian districts of Altötting and Mühldorf am Inn
- Integrated Sachs-Wolfe effect , a temperature variation of the cosmic background radiation due to density fluctuations in the late universe
- Inspur Worldwide Services, a service company of the Chinese company Inspur
- isw - Institute for Social-Ecological Economic Research
- ISW-Linz - Institute for Social and Economic Sciences