Balck is a surname. Notable people with the surname include:

Heike Balck (born 1970), retired German high jumper Hermann Balck (1893–1982), general in Nazi Germany's Wehrmacht Viktor Balck (1844–1928), Swedish officer and sports personality, and one of the original members of the International Olympic Committee William Balck (1858–1924), general in German Army

See also Balk Black