HWA
HWA is an abbreviation for:
- Hans-Weinberger-Akademie , an educational institution of the Bavarian workers' welfare
- HWA AG (Hans Werner Aufrecht), a subsidiary of Daimler AG
- Army Weapons Office of the German Army (1919–1945)
- Hennes-Weisweiler-Akademie , training center of the German Football Association
- Hessian economic archive
- Historical radio advertising archive of the University of Regensburg
- Horror Writers Association