NRG may refer to:
- In various electronic music genres and band names, NRG is an abbreviation for energy
- Hi-NRG, an early evolution of new-style disco
- Hard NRG, a hard form of dance music
- NU NRG, two Italian DJs
- NRG Energy, an energy company
- NRG Engineering, a Singapore based engineering consultancy
- NRG (file format), a proprietary file format used by Nero Burning ROM
- NRG (group), a Korean music group
- nrg Maariv, the online edition of the Israeli newspaper Maariv
- NRG Networks, a UK-based business networking organisation
- NRG Recording Studios in North Hollywood
- NRG (rock band), 80's rock band features on the Transformers The Movie: Original Motion Picture Soundtrack
- Nuclear Research and Consultancy Group, a research and consultancy firm, which in addition also is a major producer of radiopharmaceuticals in Europe
NRG may also refer to:
- Gestetner Group, which was formerly named NRG Group (N=Nashuatec, R=Rex Rotary, G=Gestetner)