De Rosnay
de Rosnay is a French surname and may refer to:
- Gaëtan de Rosnay, French painter
- Joël de Rosnay, Mauritian-born French science writer, and molecular biologist
- Jenna de Rosnay, American windsurfer, fashion designer, and model
- Tatiana de Rosnay, Franco-British writer
- Xavier de Rosnay, member of the French electronic-house duo Justice