CWG may refer to:
- CWG (repurposing company), New York State-based, recycles cell phones
- CWG Markets, a British financial trading company
- Conversations with God, a series of books by Neale Donald Walsch
- Campaign for World Government, international organization advocating for the establishment of a democratic federal world government
- Commonwealth Games, sports event involving countries that generally were in the British Empire
- Croatian World Games, multi-sport international sports event