DWG may refer to:

• .dwg, a file format used by CAD packages etc.
• Distillers wet grains, a by-product of distillation
• Digital waveguide, in the digital waveguide synthesis of audio
• Order of Great Victory of the Thunder Dragon, a Bhutanese award (post-nominal letters: DWG)
• Part of the Gunashli oilfield in the Caspian Sea
• Deisel-Wemmer-Gilbert Corporation, a cigar company, a predecessor of The Wendy's Company fast food holding company
• Delaware Water Gap, geographical feature on the Delaware River, United States
• Damwon Gaming, a Korean esports organisation