Karl Kristian Vilhelm Steincke (25 August 1880 – 8 August 1963), was a Danish politician from the Social Democratic Party. He was justice minister from 1924 to 1926 in the Stauning I Cabinet, social minister from 1929 to 1935 in the Stauning II Cabinet, and justice minister again from 1935 to 1939 in the Stauning III Cabinet and in 1950 in the Hedtoft I and II Cabinets.^[1] He has been cited as the chief architect of the Danish welfare state with the Social Reform Acts of the early 1930s, including the Kanslergade Agreement.^[2]

You can help expand this article with text translated from the corresponding article in Danish. (June 2023) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Danish Wikipedia article at [[:da:K.K. Steincke]]; see its history for attribution. You should also add the template {{Translated|da|K.K. Steincke}} to the talk page. For more guidance, see Wikipedia:Translation.

Steincke is especially known for his book The Future's Social Welfare (Danish: Fremtidens forsørgelsesvæsen) from 1920 in which he foretells:

"We treat the inferior individual with all care and love, but forbid him, in return, only to reproduce himself."

His book was the basis of the Danish laws about Eugenics, the sterilization and castration of unwanted elements. Steincke regarded the prevention of "inferior individuals" reproducing as important for society, as for the children of the "inferior individuals".