Cornelius Middelthon (12 April 1869 – 6 April 1934) was a Norwegian grocer and politician of the Conservative Party who served as Minister of Labour from 1920 to 1921 and again from 1923 to 1924.

Cornelius Middelthon
Parliamentary portrait of Middelthon.
Minister of Labour
In office
6 March 1923 – 25 July 1924
Prime MinisterOtto B. Halvorsen
Abraham Berge
Preceded byOle M. Mjelde
Succeeded byOle M. Mjelde
In office
21 June 1920 – 22 June 1921
Prime MinisterOtto B. Halvorsen
Preceded byOle M. Mjelde
Succeeded byOle M. Mjelde
Member of the Norwegian Parliament
In office
1 January 1922 – 31 December 1924
ConstituencyMarket towns of Vest-Agder and Rogaland counties
In office
1 January 1919 – 31 December 1921
ConstituencyHolmen, Stavanger
Personal details
Born(1869-04-12)12 April 1869
Stavanger, Rogaland, Sweden-Norway
Died6 April 1934(1934-04-06) (aged 64)
Stavanger, Rogaland, Norway
Political partyConservative