Thienemann is a surname. Notable people with the surname include:

• August Thienemann (1882–1960), German limnologist, zoologist and ecologist
• Johannes Thienemann (1863–1938), German ornithologist
• Ludwig Thienemann (1793–1858), German physician and naturalist
• Otto Thienemann (late 19th c.), Austrian architect. Modified Lutheran City Church and designed the Thienemannhof and Café Museum buildings in Vienna

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