Nini Haslund Gleditsch (22 June 1908 – 25 July 1996) was a Norwegian political activist and advocate for peace.
Nini (née Ingrid Margaret Haslund) was born in Moss as the daughter of deputy education officer Johannes Emmanuel Haslund and Aagot Mathilde Løken. She married fellow Mot Dag activist and geodesist Kristian Gleditsch in 1934. She died in Oslo in 1996.
While working as a joiner's mate in Copenhagen in the late 1920s she was part of the circle around the organization Clarté. She moved to Oslo as a student in 1930. In the early 1930s she joined the leftist organization Mot Dag. She worked full-time with publishing house Fram Forlag, and contributed to the development of the workers' encyclopaedia Arbeidernes Leksikon. She participated in the Spanish Civil War from 1937 to 1939, by organizing international humanitarian aid.
During World War II she participated in the flight of the Norwegian National Treasury to England in 1940, on the stage between Åndalsnes and Tromsø. She and her husband were responsible for the transport of two coffins of the "light luggage" (bank notes) by car from Åndalsnes to Molde. One third of the gold was sent with the British cruiser HMS Galatea from Åndalsnes to United Kingdom, while 24 trucks brought the rest to Molde. Nini followed the transport of four truckloads of gold by ships from Molde to Tromsø, first part with the coastal steamer SS Driva, and later the ten tons of gold was distributed on smaller fishing vessels. During the transport Driva was attacked by German bombers, but managed to escape from the bombs. She then worked for Minister Anders Frihagen at the Ministry of Trade in Balsfjord. When Terje Wold took over the Ministry, Haslund Gleditsch started working for Trygve Lie at the Ministry of Supply. She followed the British cruiser HMS Devonshire from Tromsø to Greenock in Scotland, along with part of the Norwegian Government and the Norwegian Royal Family. From 1940 to 1945 she worked as a secretary with the Ministry of Foreign Affairs at the Norwegian government-in-exile in London.