Erdmann is a surname, and may refer to:
- Carl Erdmann (1898—1945), a German historian
- Eduard Erdmann (1896—1958), was a Baltic German pianist and composer.
- Hugo Erdmann (1862—1910) German chemist
- Johann Eduard Erdmann (1805—1892), a German philosopher
- Karin Erdmann, (1948–) a German mathematician
- Nikolai Erdman (1900—1970), a Soviet dramatist
- Otto Linné Erdmann (1804–1869), a German chemist
- Susi Erdmann (1968—) is a German luger and bobsledder
- Ralph Erdmann, an American pathologist
- Wilfried Erdmann (1940–), a German sailor
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