Otto Graf Czernin von und zu Chudenitz | |
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| Austro-Hungarian Minister to Bulgaria | |
| In office 24 January 1917 – 11 November 1918 | |
| Preceded by | Ludwig Graf Széchényi von Sárvár und Felsövidék |
| Succeeded by | None |
| Personal details | |
| Born | 27 August 1875 Dimokur, Austria-Hungary (now Czech Republic) |
| Died | 14 June 1962 (aged 86) Salzburg, Austria |
| Spouse(s) | Lucy, née Beckett (1884–1979) Maria Lisa, née Pfeiffer (1899–1983) |
Otto Rudolf Theobald Ottokar Maria Graf Czernin von und zu Chudenitz (Czech: Otto Rudolf Theobald Ottokar Maria hrabě Černín z Chudenic; 27 August 1875 – 14 June 1962) was an Austro-Hungarian diplomat during the time of World War I.