| Harald Sigurdssøn Astrup | |
| Birth Date: | 29 May 1903 |
| Burial Place: | Ullern |
| Nationality: | Norwegian |
| Occupation: | Businessman Owner of Astrup & Søn Supervisory council member of Den norske Creditbank, Dyno Industrier, Norcem, the Norwegian America Line and Bjølvefossen |
| Boards: | Storebrand Idun Christiania Søforsikringsselskab Poseidon Norwegian Museum of Decorative Arts and Design Det Norske Selskab |
| Parents: | Sigurd Astrup (father) Ingeborg Willumsen (mother) |
| Spouse: | Mabel Anette Plathe Butenschøn (m. 1928) |
| Relatives: | Barthold A. Butenschøn (brother-in-law) Barthold A. Butenschøn Sr. (father-in-law) Eivind (uncle) Thorvald Astrup (uncle) |
| Years Active: | 1926-1971 |
Harald Sigurdssøn Astrup (29 May 1903 – 22 June 1983) was a Norwegian businessperson.
He was born in Kristiania as a son of politician Sigurd Astrup (1873–1949) and Ingeborg Willumsen (1877–1962).[1] He was named after his paternal grandfather (Harald Astrup, also a businessman), and was a nephew of Henning, Eivind and Thorvald Astrup.[2] In 1928 he married Mabel Anette Plathe Butenschøn, a sister of Barthold A. Butenschøn and daughter of Barthold A. Butenschøn Sr.[1]
He finished his secondary education in 1922, and was a travelling businessman in Norway and abroad until being hired in the family company Astrup & Søn in 1926. He advanced to office manager in 1931, partner in 1936 and sole owner in 1949; he also served as chairman. He was a board member of the insurance companies Storebrand, Idun, Christiania Søforsikringsselskab and Poseidon, and was a supervisory council member of Den norske Creditbank, Dyno Industrier, Norcem, the Norwegian America Line and Bjølvefossen. He was a board member of the Norwegian Museum of Decorative Arts and Design and honorary member of Det Norske Selskab, which he had chaired from 1960 to 1968.[1]
He retired in 1971.[3] He died in June 1983 and was buried in Ullern.[4]