Tidball is a surname. Notable people with the surname include:
Derek Tidball, British theologian and sociologist Marie Tidball (born 1984), English academic, disability rights campaigner, and Labour Party member who was elected as Member of Parliament for Penistone and Stocksbridge in the 2024 general election Mary Elizabeth Tidball (1929–2014), American physiologist Jeff Tidball, American game designer John C. Tidball (1825–1906), American Union Army colonel during the Civil War Thomas Theodore Tidball (1827-1913), American pioneer and founder of the Tidball Store William Tidball (born 2000), British road and track cyclist