BAZ may stand for:
- Basler Zeitung (BaZ), a regional newspaper, published in Basel, Switzerland
- Borsod-Abaúj-Zemplén, a county in Hungary
- Boryspilskyi Avtozavod, a Ukrainian bus and car manufacturer
- Bratislavské Automobilové Závody, a Slovak car manufacturer of Czech Skoda and the VW Group cars
- Bryanskyi Avtomobilnyi Zavod, a Russian car manufacturer
- Bundesanstalt für Züchtungsforschung, research organisation in Germany
- New Braunfels Municipal Airport, (FAA airport code: BAZ) in New Braunfels, Texas, United States