Klien
# Klien

Klien is a surname. Notable people with the surname include:

* Christian Klien (born 1983), Austrian racing driver
* Erika Giovanna Klien (1900–1957), artist and art educator
* Hermann Klien (born 1932), Austrian gymnast
* Michael Klien (born 1973), choreographer and artist
* Paula Klien, Brazilian artist
* Walter Klien (1928–1991), Austrian pianist
