Lachenmann (disambiguation)
Lachenmann is the family name of the following people:
- Gottlob Lachenmann (1845–1935), hymn poet and composer
- Gudrun Lachenmann (* 1941), German sociologist
- Hans Lachenmann (1927–2016), German Protestant theologian and church councilor
- Helmut Lachenmann (* 1935), German composer and composition teacher
