| Richard Woltereck | |
| Birth Date: | 6 April 1877 |
| Birth Place: | Hanover, German Empire |
| Death Place: | Seeon, Nazi Germany |
| Nationality: | German |
| Fields: | Zoology |
| Workplaces: | University of Leipzig |
| Education: | University of Freiburg |
| Thesis Title: | Zur Bildung und Entwicklung des Ostrakoden-Eies: kerngeschichtliche und biologische Studien an parthenogenetischen Cypriden |
| Thesis1 Url: | and |
| Thesis2 Url: | )--> |
| Thesis Year: | 1898 |
| Doctoral Advisors: | )--> |
| Academic Advisors: | August Weismann |
| Known For: | Reaction norm |
| Awards: | Member of the Academy of Sciences Leopoldina |
| Spouses: | )--> |
| Partners: | )--> |
Richard Woltereck (6 April 1877 – 23 February 1944) was a German zoologist best known for developing the concept of reaction norm (German: Reaktionsnorm). He also conducted some of the first research that provided evidence for the process of cytoplasmic inheritance.[1] He proposed the concept in a 1909 paper that he presented to the German Zoological Society, based on his own research on the Daphnia water flea.[2] [3] According to historian Raphael Falk, the concept of the reaction norm was later revived by Richard Lewontin.[4]