Klette is a surname of German origin. Notable people with the surname include:

Daniela Klette (born 1958), German left-wing militant Immanuel J. Klette (1918–1988), American bomber pilot and squadron commander Jon Klette (1962–2016), Norwegian jazz musician, alto saxophone player, composer and record producer Károly Klette (1793–1874), Hungarian court painter and graphic artist Leif Klette (1927–2017), Norwegian fencer

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