Look up Dach, dach, or DACH in Wiktionary, the free dictionary.
Dach is an abbreviation for the organic compound trans-1,2-Diaminocyclohexane.
Dach or DACH may also refer to:
DACH, an acronym for Deutschland (Germany), Austria, Confoederatio Helvetica (Swiss Confederation), the countries in Europe with German-speaking majorities