De Rosnay

de Rosnay is a French surname and may refer to:


 * Gaëtan de Rosnay (1912–1992), French painter
 * Joël de Rosnay (born 1937), Mauritian-born French science writer, and molecular biologist
 * Jenna de Rosnay (born 1963), American windsurfer, fashion designer, and model
 * Tatiana de Rosnay (born 1961), Franco-British writer
 * Xavier de Rosnay, member of the French electronic-house duo Justice