Christian Sophus Klein (17 August 1824 – 9 January 1900) was a Danish politician, a member of the National Party.

[2] Klein was born on 17 August 1824 in Copenhagen.

[3] He served as president of Sø- og Handelsretten (1862–72),[4] and an accessor in Denmark's supreme court between 1877 and 1891.

[5] He was a member of the Folketing between1858–1898, and served as the Justice Minister between 1872 and 1875.

[6] After implementing the Constitutional Law for Iceland, he served as minister for Iceland between 1874 and 1875.