Clouston is a surname. Notable people with the surname include:
A.E. Clouston (1908–1984), British test pilot Al Clouston (1910–2004), Canadian storyteller and humourist known as "Uncle Al" Brian Clouston (1935–2026), British landscape architect Cory Clouston (born 1969), Canadian ice hockey coach Edward Clouston (1849–1912), Canadian banker and financier James Campbell Clouston (1900–1940), Canadian officer of the Royal Navy, killed at Dunkirk Ken Clouston, member of the Wyoming House of Representatives Scott Clouston (born 1987), Australian rules footballer J. Storer Clouston (1870–1944), Orcadian author and historian Thomas Clouston (1840–1915), Scottish psychiatrist Thomas E. Clouston (1848–1913), Presbyterian minister and academic in New South Wales Wilfred Clouston (1916–1980), New Zealand flying ace of the Second World War William Clouston (disambiguation), several people