Valk is a surname. It means "falcon" in Dutch and can be of metonymic origin referring to a falconer. Alternatively, it can be patronymic, son of Falk/Falco, a West Frisian given name. There were 4380 people with the surname in the Netherlands in 2007. The name Valk in Estonia (895 people) may be related to the town Valka. Notable people with the surname include:
Curtis Valk (born 1993), Canadian ice hockey playerFrederick Valk (1895–1956), German actorGarry Valk (born 1967), Canadian ice hockey playerHeiki Valk (born 1959), Estonian archaeologistHeinz Valk (born 1936), Estonian artist, caricaturist and politicianHenry S. Valk (born 1929), American physicistKate Valk (born 1956), American artistMats Valk (born 1996), Dutch Rubik's cube speedsolverRia Valk (born 1941), Dutch singerRüdiger Valk (born 1945), German mathematicianVeronika Valk (born 1976), Estonian architectWilliam Valk (1806–1879), American Civil War surgeon and politician