Willy Georg Wolterstorff (16 June 1864 in Calbe – 21 January 1943 in Magdeburg) was a German paleontologist and herpetologist.
After receiving vocational training as a bookbinder, he studied geology from 1884 under Karl von Fritsch (1838-1906) at the University of Halle.
Wolterstorff is known for scientific research of "lower vertebrates", in particular investigations involving the systematics, reproduction and behavior of members of the family Salamandridae.
He was the author of nearly 300 scientific papers, and from 1909 was editor of Blätter für Aquarien- und Terrarienkunde.
[1] The recently extinct Wolterstorff's newt (Cynops wolterstorffi), is one of the species named in his honour.