Klaus Daae Sletten (5 March 1877 – 4 April 1946) was a Norwegian organizational worker and politician who spent his professional career as an editor of magazines and newspapers.
He was born in Høyland as a son of Johannes Ingebrigtsen Sletten (1835–1892) and Dorthea Marthine K. Ruus (1842–1922).
She was also a treasurer in Noregs Ungdomslag, an organization chaired and managed by Klaus Sletten from 1901 to 1906 and 1906 to 1912 respectively.
[1] He left Den 17de Mai in 1916, and worked in the newspapers Møre Tidend from 1917 to 1920 and Stavanger Aftenblad from 1923 to his retirement in 1943.
[1] Sletten was also involved in politics; he was a member of Stavanger city council from 1929 to 1940 as well as the school board.