Bruch, the German word for "fraction", may refer to the following
- Bruch, Lot-et-Garonne, a commune in the Lot-et-Garonne département, France
- Bruch, Rhineland-Palatinate, a municipality in the district Bernkastel-Wittlich, Rhineland-Palatinate, Germany
- the old German names of Lom u Blatné and Lom u Mostu in the Czech Republic
- Bruch's membrane, the innermost layer of the choroid in the eye
- 5004 Bruch, an asteroid
Bruch is also a relatively common surname.
- Carl Friedrich Bruch (1789-1857), a German ornithologist
- Ernst Brüche (1900-1985), a German physicist
- Hilde Bruch (1904-1984), a psychoanalyst, expert on eating disorders
- Klaus vom Bruch, a German video artist
- Max Bruch (1838-1920), a German composer
- Ricky Bruch (1946-2011), a Swedish athlete
- Walter Bruch (1908-1990), a German engineer