Baron Cajetan von Felder, German: Cajetan Freiherr von Felder (19 September 1814–30 November 1894) was an Austrian jurist, politician, and entomologist (specializing in Lepidoptera). He was elected to the first district council of Vienna in 1848 and served as mayor of the city from 1868 to 1878.
Felder is chiefly known for his work with Alois Friedrich Rogenhofer and his son Rudolf Felder, the book Reise Fregatte Novara: Zoologischer Theil., Lepidoptera, Rhopalocera (Journey of the Frigate Novara...) in three volumes (1865–1867). The SMS Novara was a frigate that made a voyage of exploration in 1857–1859 and, with help from Rudolf Cajetan von Felder, amassed a huge entomological collection that is deposited in the Naturhistorisches Museum in Vienna and the Natural History Museum in London. A collection of approximately 1,000 letters and postcards sent to Felder between circa 1856 and 1891 is also held by the Natural History Museum. They were sent to Felder, from all over the world, by leading 19th-century entomologists, and deal mainly with the exchange and purchase of specimens, Lepidoptera in particular.
| Preceded by: Andreas Zelinka |
Mayor of Vienna 1868–1878 |
Succeeded by: Julius von Newald |