| Johannes von Guenther | |
| Birth Date: | 26 March 1886 |
| Birth Place: | Mitau, Courland Governorate, Russian Empire |
| Death Date: | 28 May 1973 |
| Death Place: | Munich, Bavaria, West Germany |
| Othername: | Johannes von Günther |
| Occupation: | Playwright, novelist |
Johannes von Guenther or Johannes von Günther (1886–1973) was a German writer.[1]
The 1929 silent film Cagliostro was adapted from one of his novels.