AWG may refer to:
In science and technology:
- American wire gauge, a standardized sizing system for electrically conducting wire
- Arbitrary waveform generator, a piece of electronic test equipment used to generate electrical waveforms
- Arrayed waveguide grating, in telecommunications, an optical (de)multiplexing device
- Atmospheric water generator, a device that extracts water from humid air
Businesses and organizations:
- AWG plc, a British water company
- Association for Women Geoscientists
- Associated Wholesale Grocers
- Australian Writers' Guild
Other uses:
- Arctic Winter Games, an international biennial sports competition
- Aruban guilder, the currency of Aruba (ISO currency code)
- Asymmetric Warfare Group, a unit of the United States Army which crafts doctrine for asymmetric warfare
- Ad Hoc Working Group on Long-term Cooperative Action under the United Nations Framework Convention on Climate Change (AWG-LCA) and the Ad Hoc Working Group on Further Commitments for Annex I Parties under the Kyoto Protocol (AWG-KP).