Bald is a surname. Notable people with the surname include:
Alexander Bald (1783–1859), Scottish poet (born 1941), German political scientist and military historian Eddie Bald (1874–1946), American cyclist and automobile racing driver F. Clever Bald (1897–1970), American teacher and director of the Bentley Historical Library at the University of Michigan John W. Bald (1868–1961), Canadian photographer Kathy Bald (born 1963), Canadian swimmer Ken Bald (1920–2019), American illustrator and comic book artist Robert Bald (1776–1861), Scottish surveyor, civil and mining engineer, and antiquarian, brother of Alexander William Bald ( 1789–1857), Scottish surveyor, cartographer, and civil engineer, cousin of Alexander and Robert