Heinrich Klein
Heinrich Klein is the name of the following people:
- Heinrich Klein (composer) (1756–1832), Austrian composer
- Heinrich Klein (manufacturer) (1803–1873), German manufacturer and councilor of commerce
- Heinrich Klein (singer) (1849 – after 1925), opera singer and artistic director
- Heinrich Klein (occultist) , German occultist
- Heinrich Klein (soccer player) , German soccer player
- Heinrich Klein (inventor) (1919–2011), German inventor of the goal wall
- Heinrich Klein (pedagogue) (* 1925), German pedagogue and university professor
- Heinrich Klein (politician) (1932–1989), German politician (SPD), Member of the Bundestag and Member of Parliament
- Heinrich Klein (biologist) (1953–2011), German biologist and zoo director
- Heinrich-Josef Klein (* 1935/1936), German art historian, see Heijo Klein