Teschner is a German surname. Notable people with the surname include:
- Gustav Wilhelm Teschner (1800–1883), German composer
- Mark Teschner, American casting director
- Melchior Teschner (1584–1635), German cantor, composer and theologian
- Peter Teschner, American film editor
- Rudolf Teschner (1922–2006), German chess master and writer
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