Walther Horn | |
|---|---|
 Portrait (1916). Oil painting by Ernst Bischoff-Culm. | |
| Born | 19 October 1871 |
| Died | 10 July 1939 (aged 67) Berlin, Germany |
| Nationality | German |
| Scientific career | |
| Fields | Entomology |
| Institutions | German Entomological Institute |
Walther Hermann Richard Horn (19 October 1871 – 10 July 1939) was a German physician and entomologist who specialised in beetles (Coleoptera), particularly the tiger beetles. He became the founding director of the German entomological institute where he collaborated with entomologists around the world. He is not to be confused with the American entomologist George Henry Horn who also studied Coleoptera.