Balk is a surname. Notable people with this surname include:

Entertainment Fairuza Balk (born 1974), American film actress Harry Balk (1925–2016), American record producer and executive Michael Balk, Australian actor, television presenter, radio announcer, and producer Wesley Balk (1932–2003), American performance theorist/coach and stage director

Sports Harold Balk (c. 1898–1970), New Zealand footballer Jordi Balk (born 1994), Dutch footballer Klaas Balk (born 1948), Dutch cyclist Lars Balk (born 1996), Dutch field hockey player Remco Balk (born 2001), Dutch footballer Wulfe Balk (born 1955), Canadian fencer

Other Alfred Balk (1930–2010), American reporter, nonfiction author and magazine editor Christianne Balk (born 1953), American poet Daniel Georg Balk (1764–1826), German medical researcher Hermann Balk, 13th century Master of the Teutonic and Livonian Orders Josh Balk (born 1979), American activist Margarete Balk (1896–1974), German teacher and politician Matryona Balk (fl. 1718), Russian courtier Nicole Uhre-Balk, American educator and politician

See also Balk (disambiguation)