E. O. Plauen | |
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| Born | 18 March 1903 |
| Died | 5 April 1944 (aged 41) Berlin, Nazi Germany |
| Nationality | German |
E. O. Plauen (often stylized as e.o.plauen) was the pseudonym of Erich Ohser (18 March 1903 – 5 April 1944) (some sources give his birth year as 1909), a German cartoonist best known for his strip Vater und Sohn ("Father and Son").