Wilhelm Steudel (1829, Oberurbach – 1903, Stuttgart) was a German physician, ornithologist and entomologist who specialised in Lepidoptera.
He described the moth Rhigognostis incarnatella (Steudel, 1873) as Eine neue Plutella – Entomologische Zeitung Stettin 34: 340 - 342.
His other papers were published in Jahreshefte des Vereins für vaterländische Naturkunde in Württemberg.
Steudel was a member of the Entomological Society of Stettin.
His collection of Palearctic microlepidoptera is curated by the State Museum of Natural History Stuttgart.