Kleyer
Kleyer is the family name of the following people:
- Heinrich Kleyer (1853–1932), German designer, mechanical engineer and manufacturer
- Hermann Kleyer (1911–1995), German lawyer and chief officer
- Michael Kleyer , Professor of Nature Conservation and Landscape Planning at the University of Oldenburg and Director of the Institute for Biology and Environmental Sciences
- Stefan Kleyer (* 1971), German soccer player