Willrich is a surname. Notable people with the surname include:
Chris Willrich (born 1967), American science fiction and fantasy writer Jean Willrich (born 1953), German-American soccer player Mason Willrich (born 1933), American law professor, arms control, and energy expert Michael Willrich, American historian Penny Willrich, American lawyer, academic administrator, and judge Wolfgang Willrich (1897–1948), German artist