Siddons is a surname. Notable people with the surname include:
Anne Rivers Siddons (1936–2019), American novelist Bill Siddons, manager of the band The Doors (1968–1972) Frederick Lincoln Siddons (1864–1931), U.S. federal judge Harold Siddons (1922–1963), Northern Irish actor Harriet Siddons (1783–1844), Scottish actress and theatre manager, wife of Henry Siddons and daughter-in-law of Sarah Siddons Henry George Impey Siddons (c. 1851 – 1936), Indian educationist Henry Siddons (1774–1815), Scottish actor, theatre manager, and writer, husband of Harriet Siddons and son of Sarah Siddons Jamie Siddons (born 1964), Australian cricketer John Siddons (1927–2016), retired Australian politician Michael Siddons (born 1928), Wales Herald of Arms Extraordinary Michael John Siddons-Corby (born 1951), English guitarist Royston Siddons (1899–1976), Australian industrialist Sarah Siddons (1775–1831), British actress Dame Sarah Elizabeth Siddons Mair (1846–1941), Scottish suffragette campaigner William Siddons (1864–1893), English footballer
See also Sarah Siddons Award, an annual award given by the Sarah Siddons Society in Chicago for outstanding performance in Chicago theater production Siddons Patera, a volcanic caldera on Venus Siddons Point, Livingston Island, South Shetland Islands, Antarctica "To Mrs Siddons", a sonnet written by Samuel Taylor Coleridge Siddon