DNG can have the following meanings:
- Digital Negative, also known as "Adobe DNG" and "Adobe Digital Negative", a publicly available digital photography raw image format
- Delaware National Guard
- DetonatioN Gaming
- Negative-index metamaterial, also known as double negative metamaterials, materials in which both permittivity and magnetic permeability are less than zero. They are a class of Electromagnetic metamaterials.
- Degrassi: The Next Generation, a Canadian television series
- An abbreviation of dienogest, a progestin medication
- The ISO 639-3 code for the Dungan language
- The station code for Dandenong railway station, Victoria, Australia