Brack is an English and German surname. Notable people with the surname include:
Antonio Brack Egg (born 1940), Peruvian agronomist engineer, an ecologist, and researcherBill Brack (born 1935), former racing driverBrack Cornett (outlaw) (1841-1888), prominent outlaw born in Goliad County, TexasGibby Brack (born 1908), Major League Baseball outfielderJohn Brack (1920–1999), Australian painterKenny Bräck (born 1966), race car driver from SwedenViktor Brack (1904–1948), Nazi physician and organiser of the Euthanasia ProgrammeWalter Brack (1880–1919), German backstroke and breaststroke swimmerWilliam Jackson Brack (1837–1901), first mayor of Orlando, Florida