Klien is a surname. Notable people with the surname include:
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Christian Klien (born 1983), Austrian racing driver
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Erika Giovanna Klien (1900–1957), artist and art educator
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Hermann Klien (born 1932), Austrian gymnast
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Michael Klien (born 1973), choreographer and artist
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Paula Klien, Brazilian artist
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Walter Klien
Walter Klien (27 November 1928 – 9 February 1991) was an Austrian pianist.
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Career
Klien was born in Graz in 1928. His mother was the artist Erika Giovanna Klien (1900-1957). She emigrated to the United States in 1929, and their only furth ...
(1928–1991), Austrian pianist
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