Otto Bütschli
| Otto Bütschli | |
|---|---|
| Otto Bütschli in 1916 | |
| Born | 3 May 1848 Frankfurt, German Confederation | 
| Died | 2 February 1920 (aged 71) | 
| Education | University of Heidelberg | 
| Known for | Recognizing the structures now known as chromosomes | 
| Awards | Linnean Medal (1914) | 
| Scientific career | |
| Fields | Invertebrate zoology | 
| Institutions | University of Kiel, University of Heidelberg | 
| Doctoral advisor | Rudolf Leuckart | 
| Doctoral students | Wladimir Schewiakoff Richard Goldschmidt | 
| Author abbrev. (botany) | Buetschli | 
Johann Adam Otto Bütschli (3 May 1848 – 2 February 1920) was a German zoologist and professor at the University of Heidelberg. He specialized in invertebrates and insect development. Many of the groups of protists were first recognized by him.
He was the first scientist to recognize the structures now known as chromosomes.