William Sweetland Dallas (1824–1890) was a British zoologist who studied the insect collections at the British Museum, and served as an assistant secretary of the Geological Society of London and a Keeper of the museum of the Yorkshire Philosophical Society, apart from being an editor of the Popular Science Review as well as the Annals and Magazine of Natural History. He translated several biology books from German into English.
- Occupation
- entomologist, zoologist, curator, translator
- Citizenship
- United Kingdom of Great Britain and Ireland
- Born
- January 31, 1824
- Died
- May 28, 1890