De Clerck is a Dutch surname, particularly common in Flanders. In the province of West Flanders, the name is usually concatenated to Declerck. People with the surname include:Albert De Clerck (1914–1974), Belgian politician and government minister Carl Alexander Clerck (1709–1765), Swedish entomologist and arachnologist Hendrik de Clerck, Flemish painter Jacques de Clerck, Antwerp-born Dutch merchant, admiral, and explorer Jeanne Albertine Colin-De Clerck, Belgian composer Marc De Clerck, Belgian football goalkeeper Olivier De Clerck, phycologist with the standard author abbreviation "De Clerck" Richard Declerck (1899–1986), Belgian lawyer and politician Roger De Clerck (1924–2015), Belgian entrepreneur Stefaan Maria Joris Yolanda De Clerck, Belgian politician