Wilken is a surname. Notable people with the surname include:
Aud Wilken (born 1965), Danish singer
Charles Wilken (1866–1956), Danish actor
Claudia Ann Wilken (born 1949), United States federal judge
Dorothy Wilken, American politician
Friedrich Wilken (1777–1840), German librarian, historian and orientalist
Hermann Wilken (1522–1603), German humanist and mathematician
Patrick Wilken (born 1966), Australian scientist and editor
Stewart Wilken (born 1966), South African serial killer