Youth and education
Åström studied at Uppsala University where he received a Bachelor of Arts in 1935 and a Candidate of Law in 1939. Åström was a member of the National Student Association in Uppsala, an organization affiliated with the pro-Nazi National League of Sweden, from 1932 to 1937.
Following his studies, Åström was employed as an attaché at the Ministry for Foreign Affairs in Stockholm. From 1940 to 1943 he served at the Swedish mission to the Soviet Union, first in Moscow and then in Kuybyshev. In 1946 he became secretary of legation at the Swedish embassy in Washington, D.C. He returned to the Ministry for Foreign Affairs in 1948 and became its head of division in 1949. From 1953 to 1956 he served as councillor (Swedish: beskickningsråd) at the Swedish embassy in London, and from 1956 to 1963 he was head of the political division and a foreign affairs councillor (Swedish: utrikesråd) at the Ministry for Foreign Affairs.
In 1964, Åström succeeded Agda Rössel as Sweden's Permanent Representative to the United Nations. He stayed on this post until 1970, when he became Sweden's chief negotiator on the EEC treaty in Brussels. Thereafter he served as Swedish State Secretary for Foreign Affairs from 1972 to 1977, and as Swedish ambassador to France from 1978 until his retirement in 1982.
Åström's autobiography, Ögonblick: från ett halvsekel i UD-tjänst ("Moments: From Half a Century in the Duty of the Ministry for Foreign Affairs"), was published in 1992.
In 2003, at the age of 87, Åström came out as a homosexual. In an interview he has explained that his role as a diplomat made it impossible to declare himself as homosexual in public, but that his superiors and others were informed to eliminate the possibility of him being blackmailed by foreign agents.
In 2004 he received the "Homo of the Year"-award from the Swedish gay oriented magazine QX. In 2006 he was one of the co-hosts of the Swedish TV-series Böglobbyn ("The Gay Lobby") on Sveriges Television. However he decided to leave the series after just two episodes had been broadcast.
- Ögonblick : från ett halvsekel i UD-tjänst (1992)
- Michelangelo (2005)
- Death report at Swedish Radio (in Swedish)
- Hübinette, Tobias (2002). Den svenska nationalsocialismen : medlemmar och sympatisörer 1931-45 (in Swedish). Stockholm: Carlsson. p. 485. ISBN 91-7203-472-6.
- Peruzzi, Britt (2006-04-15). "Vi dansar, dricker och ser solen gå upp" (in Swedish). Aftonbladet. Archived from the original on 2007-03-11. Retrieved 2007-03-22.
- Nises, Erik (2011-05-21). "Sverker Åström hyllas av MP" (in Swedish). Aftonbladet. Retrieved 2011-05-28.
| Permanent Representative to the United Nations
| State Secretary for Foreign Affairs
| Ambassador of Sweden to France