B
- Katsuyoshi Baba, a Japanese malacologist who published a monograph of the fossil mollusks of Japan in 1990
- Károly Bába (1935–2007), from Hungary
- Kikutaro Baba (1905–2001), from Japan
- Paul Bartsch (1871–1960), an American malacologist and carcinologist of German origin
- Fred Baker (1854–1938), from the USA
- Horace Burrington Baker (1889–1971), from the USA
- David Dwight Baldwin (1831–1912), from Hawaii, USA. Studied land snails of Hawaii.
- Klaus Bandel (1941), paleontologist and malacologist from Germany, at Geologisch-Paläontologisches Institut und Museum of the University of Hamburg
- Charles Gustave François Hubert Bayer (1887–1956), from Netherlands
- Frederick Bayer (1921–2007), from the USA
- L. Bayer from Belgium/Africa
- Henrik Henricksen Beck (1799–1863), from Denmark
- William Henry Benson (1803-1870), malacologist from "U.K./India/South Africa"
- Joseph Charles Bequaert
- Rudolph Bergh
- Samuel Stillman Berry
- Michael Bielz (1787–1866) Austrian-Hungarian and Transylvanian schwabish zoologist, malacologist
- Eduard Albert Bielz (1827–1898) Austrian-Hungarian and Transylvanian zoologist malacologist (son of Michael Bielz)
- William G. Binney
- Willis Blatchley
- Harry Howard Bloomer, from England
- Caesar Rudolf Boettger
- Oskar Boettger
- Ignaz von Born (1742–1791), from Austria
- Filippo Bonanni
- Philippe Bouchet
- Jules René Bourguignat
- John William Brazier (1842–1930), from Australia
- William Broderip
- Captain Thomas Brown (naturalist) (1785–1862), from Britain
- Auguste Louis Brot (1821-1896), from Switzerland
- Adolph Cornelis van Bruggen (A. C. van Bruggen, Dolf van Bruggen) (1929), from Netherlands and South Africa
- Jean Guillaume Bruguière
- Spiridon Brusina (1845–1909), from Croatia
- Rykel de Bruyne, from Netherlands
- James Bulwer
- John B. Burch
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