Members of the Royal Swedish Academy of Sciences

Arne Semb-Johansson (20 September 1919 – 22 February 2001) was a Norwegian zoologist. He was born in Kristiania. He chaired the Norwegian Entomological Society from 1950 to 1953. He was assigned as a professor of zoology at the University of Oslo from 1959. Among his early works were studies of the nervous system and endocrine system of insects. He edited the six volume encyclopedia Cappelens Dyreleksikon, published 1979–1981. He was decorated Knight, First Class of the Order of St. Olav in 1987.During the occupation of Norway by Nazi Germany he was a central member of Milorg, being a courier for leader Jens Christian Hauge. He was a member of the board of Norway's Resistance Museum from 1973. In 1995 he published the book Fem år for fred og frihet med Milorg 1940–1945.

Guy Henry Ourisson (March 26, 1926 – November 4, 2006) was a French chemist. He was a member of the Academy of Sciences where he was vice president and then became the president. Awarded the Ernest Guenther Award in 1972 and the Heinrich Wieland Prize in 1985.

Elias Magnus Fries (15 August 1794 – 8 February 1878) was a Swedish mycologist and botanist. He is sometimes called the "Linnaeus of Mycology". In his works he described and assigned botanical names to hundreds of fungus and lichen species, many of which remain authoritative today.

Sir James Paget, 1st Baronet FRS HFRSE (11 January 1814 – 30 December 1899) (, rhymes with "gadget") was an English surgeon and pathologist who is best remembered for naming Paget's disease and who is considered, together with Rudolf Virchow, as one of the founders of scientific medical pathology. His famous works included Lectures on Tumours (1851) and Lectures on Surgical Pathology (1853). There are several medical conditions which were described by, and later named after, Paget:

Paget's disease of bone
Paget's disease of the nipple (a form of intraductal breast cancer spreading into the skin around the nipple)
Extramammary Paget's disease refers to a group of similar, more rare skin lesions discovered by Radcliffe Crocker in 1889 which affect the male and female genitalia.
Paget–Schroetter disease
Paget's abscess, an abscess that recurs at the site of a former abscess which had resolved.

Gabriel Auguste Daubrée MIF FRS FRSE (25 June 1814 – 29 May 1896) was a French geologist, best known for applying experimental methods to structural geology. He served as the director of the École des Mines as well as the president of the French Academy of Sciences.

Henry Louis Le Chatelier (French pronunciation: [ɑ̃ʁi lwi lə ʃɑtəlje]; 8 October 1850 – 17 September 1936) was a French chemist of the late 19th and early 20th centuries. He devised Le Chatelier's principle, used by chemists and chemical engineers to predict the effect a changing condition has on a system in chemical equilibrium.

Catherine Jeanne Cesarsky (born Catherine Jeanne Gattegno on 24 February 1943) is an Argentine and French astronomer, known for her research activities in astrophysics and for her leadership in astronomy and atomic energy. She is the current chairperson of the Square Kilometre Array's governing body, SKAO Council. She was the first female president of the International Astronomical Union (2006-2009) and the first female director general of the European Southern Observatory (1999-2007).

Adolphe-Théodore Brongniart (French: [adɔlf teodɔːʁ bʁɔ̃ɲaːʁ]) FRS FRSE FGS (14 January 1801 – 18 February 1876) was a French botanist. He was the son of the geologist Alexandre Brongniart and grandson of the architect, Alexandre-Théodore Brongniart. Brongniart's pioneering work on the relationships between extinct and existing plants has earned him the title of father of paleobotany. His major work on plant fossils was his Histoire des végétaux fossiles (1828–37). He wrote his dissertation on the Buckthorn family (Rhamnaceae), an extant family of flowering plants, and worked at the Muséum national d'Histoire naturelle in Paris until his death. In 1851, he was elected a foreign member of the Royal Swedish Academy of Sciences. This botanist is denoted by the author abbreviation Brongn. when citing a botanical name.

Franz Karl Achard (28 April 1753 – 20 April 1821) was a German (Prussian) chemist, geoscientist, physicist, and biologist. His principal discovery was the production of sugar from sugar beets.

Jérôme Jean Louis Marie Lejeune (13 June 1926 – 3 April 1994) was a French pediatrician and geneticist, best known for his work on the link of diseases to chromosome abnormalities, most especially the link between Down Syndrome and trisomy-21 and cri du chat syndrome, amongst several others, and for his subsequent strong opposition to, in his opinion, the improper and immoral use of amniocentesis prenatal testing for eugenic purposes through selective and elective abortion. He is venerated in the Catholic Church, having been declared Venerable by Pope Francis on 21 January 2021.