Decaux

Decaux, or De Caux, is a French surname. Notable people with the surname include:

Decaux
 * Abel Decaux (1869–1943), French classical organist and composer
 * Alain Decaux (1925–2016), French historian
 * Alice Decaux (born 1985), French hurdler
 * Georges Decaux (1930–2015), French cyclist
 * Jacques Decaux (1918–2003), French sport shooter
 * Jean-Claude Decaux (1937–2016), French businessman

De Caux
 * Jean Baptiste de Caux of Blacquetot (1723-1796), French army officer
 * John de Caux, or John de Caleto (c. 1205 – 1263), Norman-English administrator
 * Len De Caux (1899–1991), American labor activist
 * Louis Victor de Blacquetot de Caux (1773–1845), French army officer