Weyrauch is a German surname. The name is sometimes spelled Weirauch. Notable people with the surname include:
Erwin Antonín Weyrauch (1803–1865), Bohemian writer and priest of Premonstratensian Order Jakob Johann von Weyrauch (1845–1917), German mathematician and engineer Johannes Weyrauch (1897–1977), German composer Wolfgang Weyrauch (1904–1980), German writer Wolfgang Karl Weyrauch (1907–1970), German-Peruvian zoologist