Ludwig Redtenbacher (June 10, 1814, in Kirchdorf an der Krems, Austria – February 8, 1876, in Vienna) was an Austrian medical doctor and entomologist mainly interested in beetles.
Although Redtenbacher worked mainly on the beetles of Austria, his new approach to classification or, in German, "analytischen" was widely adopted.
He is also significant for his work involving beetles collected on the voyage of the Novara, an Austrian frigate that went on a round-the-world scientific expedition between 1857 and 1859.
He wrote the entomological portion of Joseph Russegger's Reisen in Europa, Asien und Afrika (Travels in Europe, Asia and Africa).
[2] In 1848, Carl Eduard Hammerschmidt named comadia redtenbacheri, known as the caterpillar placed in bottles of mezcal, in honour of Ludwig Redtenbacher.