WCharles Theodore Blachier was a Swiss entomologist who specialised in Lepidoptera.
WJohann Jacob Bremi-Wolf was a Swiss entomologist and Kunsthandwerker in Zürich. He was deaf due to illness at the age of 11. His entomological herbarium is held by the Museum Wiesbaden. Other parts of his insect collection, especially Diptera are held by the Naturforschende Gesellschaft in Zürich.
WCharles-Juste Bugnion, full name Charles Juste Jean Marie Bugnion was a Swiss banker and Vaudoise political personality. He was a member of the Société Helvétique des sciences naturelles and one of the founding members of the Société entomologique de France.
WLudwig Georg Courvoisier was a surgeon from Basel, Switzerland. He was one of the first doctors to remove gallstones from the common bile duct.
WPhilippe Cuénoud is a Swiss entomologist and botanist living in Geneva, who worked on the Psocoptera of Switzerland and Papua New Guinea, as well as on plant phylogeny. He found the only recently known population of Lachesilla rossica near Geneva and contributed further to the knowledge of the flora and fauna of the canton of Geneva with the first mention of a slender-billed gull and with the discovery of the first reported population of small-leaved helleborines. He also participated in a multidisciplinary study of the free-living fauna and flora of Basel's Zoo. In a 1999 trip to Brasil with Alain Chautems, he was among the first few people to see the newly rediscovered flower Sinningia araneosa, that had gone missing for more than a century.
WAlphonse Louis Pierre Pyramus de Candolle was a French-Swiss botanist, the son of the Swiss botanist Augustin Pyramus de Candolle.
WAuguste-Henri Forel was a Swiss myrmecologist, neuroanatomist, psychiatrist and eugenicist, notable for his investigations into the structure of the human brain and that of ants. For example, he is considered a co-founder of the neuron theory. Forel is also known for his early contributions to sexology and psychology. From 1978 until 2000 Forel's image appeared on the 1000 Swiss franc banknote.
WJohann Kaspar Füssli, also written Johann Caspar Fuesslins or Fuessly, was a Swiss painter, entomologist and publisher.
WOswald Heer, Swiss geologist and naturalist, was born at Niederuzwil in Canton of St. Gallen and died in Lausanne.
WHans Rudolf Herren is a Swiss entomologist, farmer and development specialist. He was the first Swiss to receive the 1995 World Food Prize and the 2013 Right Livelihood Award for leading a major biological pest management campaign in Africa, successfully fighting the Cassava mealybug and averting a major food crisis that could have claimed an estimated 20 million lives.
WLudwig Imhoff was a Swiss physician and entomologist. Imhoff was the son of a merchant Hieronymus Imhoff and his wife Johanna nee Wenk in Basel. He attended the Samuel Hopf school in Basel, which followed the educational methods of Johann Heinrich Pestalozzi. He then attended the Pädagogium in Basel. In 1820 he began law studies but switched to medicine. He studied medicine in Strasbourg, Heidelberg, Halle and Berlin. In 1826, after completing his studies, he returned to Basel. Here he worked as a doctor and naturalist. He married Maria Julia Auguste Heitz in 1829. Ludwig Imhoff habilitated at the University of Basel as a zoologist with a focus on entomology. Also from 1826 he began his work on the entomological collection of the Natural History Museum of Basel. He also made a collection of European insects for the Museum of Comparative Zoology at Harvard University. Imhoff was a member of several natural history societies, as from 1826 Naturforschenden Gesellschaft des Kantons Basel and from 1827 Schweizerischen Naturhistorischen Gesellschaft. From 1859 to 1868–1870 he was Präsident der Schweizerischen Entomologischen Gesellschaf. He was particularly active in the field of classification of Hymenoptera and Coleoptera.
WLouis Jurine was a Swiss physician, surgeon and naturalist mainly interested in entomology. He lived in Geneva.
WAnna Maurizio was a Swiss biologist who studied bees. She worked for more than three decades in the Department of Bees at the Liebefeld Federal Dairy Industry and Bacteriological Institute, where she developed new methods for determining the amount of pollen in honey.
WRudolf Ludwig Meyer-Dür was a Swiss entomologist who specialised in Hemiptera, Orthoptera and Neuroptera He was a founder Member of the Swiss Entomological Society.
WHercule Nicolet born Louis-Ami-Hercule Nicolet, was a Swiss lithographer, natural history illustrator, librarian at École nationale vétérinaire d'Alfort from 1861 to 1870, and entomologist who specialized in Thysanura and Collembola.
WÉdouard Piaget was a Swiss entomologist who specialised in lice (Phthiraptera).
WFrançois Jules Pictet-De la Rive was a Swiss zoologist and palaeontologist.
WHans Pochon (1900–1977) was a Swiss entomologist and an authority on Buprestidae beetles.
WAugust Rätzer or Raetzer (1845–1907) was a Swiss entomologist who specialised in Lepidoptera. He was a Parson in Solothurn. He wrote Rätzer, 1890 Lepidopterologische Nachlese Mitt. Schweiz. ent. Ges. 8 : 220-229 in which he first described Erebia christi.
WJohann Jacob Roemer was a physician and professor of botany in Zurich, Switzerland. He was also an entomologist.
WCarl Ulisses von Salis-Marschlins or Karl or Charles was a Swiss naturalist interested in botany, entomology, and conchology. He was a count of the Holy Roman Empire. His first studies were in Jena then at the Academy in Dijon. He was a Jurist. During the War of the Second Coalition he was held hostage in Salins-les-Bains 1799-1800 and later in St. Gallen (1801).
WHenri Louis Frédéric de Saussure was a Swiss mineralogist and entomologist specialising in studies of Hymenoptera and Orthoptera. He also was a prolific taxonomist.
WJohann Rudolph Schellenberg was a Swiss artist, writer and entomologist best known for his illustrations of insects.
WMaximilian Rudolph Standfuss was a German-Swiss entomologist specializing in Lepidoptera.
WKarl Vorbrodt, or Carl, was a Swiss entomologist who specialised in Lepidoptera and microlepidoptera). Karl Vorbrodt published fauna studies, revisions and descriptions of new species in Mitteilungen der Schweizerischen Entomologischen Gesellschaft. Together with Johann Müller-Rutz he wrote Die Schmetterlinge der Schweiz Bern K.J. Wyss, 1911-1914. His collection of Palearctic Lepidoptera is in the Natural History Museum of Bern.
WCarl Brunner von Wattenwyl was a Swiss entomologist who specialised in Orthoptera, and a botanist.