Zach is a surname. Notable people with the name include:
Anton von Zach (1747-1826), Austrian generalErwin von Zach (1872-1942), Austrian diplomat and sinologistFranz Xaver von Zach (1754-1832), Austrian astronomerAlexander Zach (born 1976), Austrian politicianFrantišek Zach (1807-1892), Czech-born soldier, military theorist and freedom fighterHilde Zach (1942–2011), first woman mayor of Innsbruck, AustriaJan Zach (1699-1773), Czech composer, violinist and organistMichal Zach (born 1969), Czech football managerNathan Zach (born 1930), Israeli poet