Otto Weber may refer to:
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Otto Weber (painter)
Carl Emil Otto Weber (17 October 1832, in Berlin – 23 December 1888, in London) was a German genre, landscape, and animal painter. He was one of the first to paint in the Breton village of Pont-Aven which later developed into an artists' colon ...
(1832–1888), German painter
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Otto Weber (politician), Romanian politician
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Otto Weber (theologian), German theologian
{{Hndis, Weber, Otto