Harbach may refer to:
Locations
Harbach (Landkreis Altenkirchen), a municipality in Altenkirchen, Rhineland-Palatinate, Germany Harbach, a village in Grünberg, Gießen, Hesse, Germany Harbach, a cadastral community in Bad Hofgastein, St. Johann im Pongau, Salzburg, Austria
People
Barbara Harbach (born 1946), American composer, harpsichordist and organist Chad Harbach (born 1975), American writer Otto Harbach (1873–1963), American lyricist and librettist William O. Harbach (1919–2017), American television producer