GWG is a three letter acronym that can stand for:
- Geeks With Guns
- Girls with guns
- Girls Wearing Glasses
- Game-winning goal (sports term)
- Global warming gases (greenhouse gases)
- "Go with God"
- "Good without God"
- Goodwill gesture
Organizations:
- Ghent PDF Workgroup (graphic arts)
- Goodwill Games (Olympic style games started during the Cold War)
- The former Garden Writers' Guild (renamed the Garden Media Guild in late 2007), a British trade association for garden writers, photographers and broadcasters
- Great Western Garment Co.
- GWG Partners