| Acronym | Definition |
|---|
| CNES | Centre National d'Etudes Spatiales (French Space Agency) |
| CNES | Comhairle Nan Eilean Siar (Gaelic; Scottish regional government council; UK) |
| CNES | Chambre Nationale des Experts Spécialisés en Objets d'Art et de Collection (French: National Chamber of Experts Specializing in Decorative Art and Collectibles) |
| CNES | Center for Near Eastern Studies (University of California, Los Angeles; Los Angeles, CA) |
| CNES | Citizens' Network on Essential Services |
| CNES | Croatian National Educational Standard (Croatia) |
| CNES | Corus Northern Engineering Services (UK) |
| CNES | Comprehensive National Energy Strategy (US Department of Energy) |